I have 5 of the x66 cameras. I like them. 3 of them have the solar panels. They have been running for a couple months now. If they get lots of sun they will keep charged. If the sun is filtered, then you'd probably want to run them on picture only mode. I have a couple in hybrid mode, which sends me a video like set of pictures, then I can request the HD video with sound if I want it. The first few I bought were around $75 and that included the solar panel. I would say the only thing I don't like is the app doesn't have a place to store/sort pictures into galleries. So, I have just been saving them in albums on my phone. The only other thing I have concerns about is the proprietary removable lithium battery, I have a few extra so hopefully I will be good, but I would like the ability to use AA if needed. Other than that I am impressed and plan on phasing out my tactacams.