I've got a DR400G-II. It's a fine camera and I'm quite happy with it.
However, for an expensive product, it has a lot of bugs and other minor glitches. The support status of the V2 is also unclear - there is no official english firmware/software for it, except that which comes pre-installed on cameras bought via official dealers. Grey-import cameras usually come loaded with Korean firmware. With no way to download an english firmware, you are SOL, unless you speak Korean, or are good at hacking firmwares.
The image sensor burnout problem with the V1, despite the marketing literature, has been improved, but not completely solved. The V2 still burns out sensor chips in SoCal type climates.
The image quality is excellent, with a decent frame-rate achievable at 1080p. The lens is wide angle, but sufficiently sharp that plates can be read during the day. Plate reading isn't possible after dark, but detail is still plenty adequate for most purposes.
For an expensive camera, it is disappointing that the camera does drop frames periodically, and this can upset some media player software/media streamer boxes which can't handle variable frame rate video. But realistically, you're not going to be shooting cinematic masterpieces with it, so it's not exactly a significant issue.
The camera has GPS and a 3-axis accelerometer. The shock detection firmware, however, is buggy. This leads to random event recording on minimal (or even no) bumps, even when sensitivity is set so low that genuine evasive action may be ignored. Again, not much of an issue; you may run into issues with the card getting filled up with locked event files if you do a lot of driving on poor roads.
There is also a minor issue with event recording generally. The camera starts a new file about 5 seconds before "impact", so you don't get much "preamble" recorded with the "event". You will have the file before it as context, but there is a glitch between the two files.
There are a few people who have issues with the supplied SD card. If the card is never removed from the camera, eventually the file system on the card suffers fragmentation and the budget SD card has terrible access time, it lags out causing the camera to crash. The solution is to use the card in a card reader and manually delete the files once a month or so, or to upgrade to a higher performance "class 10" card.
The supplied software is windows only (no mac), is very basic and only runs in a non-resizable postage-stamp sized window, where the video is downscaled to a tiny resolution. There are alternative shareware products available which are much more feature rich (e.g. registrator viewer) but they have their own bugs which make them unsatisfactory when used with the DR400G.
That said, if all you want is something small, discrete and easy to install, that can record in good image quality, then there really isn't an alternative on the market. The other high-end cameras are all equally buggy as well as being bigger and/or needing an external GPS antenna.
However, for an expensive product, it has a lot of bugs and other minor glitches. The support status of the V2 is also unclear - there is no official english firmware/software for it, except that which comes pre-installed on cameras bought via official dealers. Grey-import cameras usually come loaded with Korean firmware. With no way to download an english firmware, you are SOL, unless you speak Korean, or are good at hacking firmwares.
The image sensor burnout problem with the V1, despite the marketing literature, has been improved, but not completely solved. The V2 still burns out sensor chips in SoCal type climates.
The image quality is excellent, with a decent frame-rate achievable at 1080p. The lens is wide angle, but sufficiently sharp that plates can be read during the day. Plate reading isn't possible after dark, but detail is still plenty adequate for most purposes.
For an expensive camera, it is disappointing that the camera does drop frames periodically, and this can upset some media player software/media streamer boxes which can't handle variable frame rate video. But realistically, you're not going to be shooting cinematic masterpieces with it, so it's not exactly a significant issue.
The camera has GPS and a 3-axis accelerometer. The shock detection firmware, however, is buggy. This leads to random event recording on minimal (or even no) bumps, even when sensitivity is set so low that genuine evasive action may be ignored. Again, not much of an issue; you may run into issues with the card getting filled up with locked event files if you do a lot of driving on poor roads.
There is also a minor issue with event recording generally. The camera starts a new file about 5 seconds before "impact", so you don't get much "preamble" recorded with the "event". You will have the file before it as context, but there is a glitch between the two files.
There are a few people who have issues with the supplied SD card. If the card is never removed from the camera, eventually the file system on the card suffers fragmentation and the budget SD card has terrible access time, it lags out causing the camera to crash. The solution is to use the card in a card reader and manually delete the files once a month or so, or to upgrade to a higher performance "class 10" card.
The supplied software is windows only (no mac), is very basic and only runs in a non-resizable postage-stamp sized window, where the video is downscaled to a tiny resolution. There are alternative shareware products available which are much more feature rich (e.g. registrator viewer) but they have their own bugs which make them unsatisfactory when used with the DR400G.
That said, if all you want is something small, discrete and easy to install, that can record in good image quality, then there really isn't an alternative on the market. The other high-end cameras are all equally buggy as well as being bigger and/or needing an external GPS antenna.