Initial impressions are great!
There were two updates as soon as I booted, the camera app was one, and you do need it for it to work properly, so I installed it, and then the camera had issues with video recording, but the app suggested I restart the phone, which fixed it.
So, initial testing, the camera took pictures front facing, rear facing, and took video with sound. There is a slight delay when you select record for the video recording, it hangs almost long enough for you to think it froze, then it starts recording and updating the viewer screen. Same pause when you stop recording video, it looks like it hangs for a few seconds, then is fine.
Sound worked, the screen was good and responsive, touch worked, all the usual stuff just worked! WiFi was good.
I turned it off, put in my sim card, booted up, picked up my carrier right away. Data worked. I could not make a phone call, but that is not UT's fault. My carrier still uses 3g towers, and the FLX1 does not support my local 3g tower bands. So that is not Ubuntu Touch's fault.
Now I just have to check on how UT handles SIP calls, as I use that. But yeah, seems to be working great overall!