I've been running the 650s IR for a couple of weeks now. I bought this for recording while I drive for Uber. The exterior camera records beautiful color images, during the day and at night. The real selling point for me, though, is the interior infrared camera. The illuminators light up the whole cabin and the interior camera captures everything, when mounted above the rearview mirror. I'm using a Kingston 128 GB Class 10 Mircro SD for storage. On Friday night, I recorded for 10 hours straight, with no issues. 10 hours recording on both cameras accounted for about 60% of the 128 GB. I like the control interface via wifi and the Blackvue ios app. The camera configuration options are straightforward enough. I like being able to browse clips and to download them to my phone, in the event I need to examine or share something immediately. The GPS map is included in the offline playback. I thought that was a cool feature. The Blackvue viewer software for PC is pretty good too. As a driver, it's great to know that I have my own GPS record of every trip. The timeline browser takes an hour or so to get used to. Once you understand it, though, the interface is very intuitive and it's easy to browse through a whole night or days' worth of clips, to find the videos that I'm looking for. Just a few gripes. The maximum clip length option is 3 minutes. Other cameras that I've used have a 5 minute option and that would be my preference. My AT&T iPhone won't connect to LTE while interfacing with the camera over wifi. I wish there was another way to access the camera and stay online with my phone. My preference would be to have my phone be the access point and have the camera peer off of that.