I've pulled the trigger on this one and it arrived today (shipping was very fast).
A 16GB microSD card and an USB cable was included in the package as well beyond a brief but reasonable manual.
I don't have much experience with this kind of cameras, so far I've used only a Mestek IR01C to check PCBs or building insulation mistakes. This naturally will make it a lot easier.
Thus my expected use of the camera is pretty much the same as of the OP's.
It probably won't see much scientific usage so should there be any pixel errors it's not my concern (the display has none, and sensor pixel fault is hard to detect as probably similar interpolating algorithms are used as with photography cameras so I don't know if it has one).
The boot time is around 20s (mostly there is a progress bar) and the switching between the low and high gain takes also around 20-25s (there is no progress bar here). High gain is -15-150C, low gain 150-550C.
I suspect that the refresh rate is not reaching the spec (or because it's < it's not even close to it) and there is also some lag if I move the camera but for my use it's OK.
Sometimes there is some clicking noise that can be heard in silent environment.
It drains battery quite fast (or I've played a lot with it without noticing) but it seems to be charging when it's used while connected to USB as well (or at least battery indicator is stepping).
I can't say much about accuracy as I don't have anything similar to compare but it agrees with my other measurement methods (temperature probe of DMM included as well).
In overall I feel it will cover my use cases and I like it.
I have no doubt though that for more money there are better cameras but at this price point I have probably nothing to complain about.
Attached 2 photos (both high gain mode; I had to convert them to JPG as BMP does not seem to work). One from my laptop and second one is the towel dryer in our bathroom.