Those things are BRILLIANT. Sometimes a hit or miss because they're from China (even arrive with like weird Chinese instructions) but as they turn on the first time you'll never have a problem.
They're great because they're just so cheap and the remote is pretty cool, although after a while in any one particular setting, it likes to start to do its own thing... So you'll just have to watch out for that lol.
The only other complaint I have is that you can't control the spread at ALL. The light is BRIGHT, but the rectangular reflected output makes it just an awkward beam/throw. It doesn't matter if you just want a general wash light, but don't expect to be able to do a small area with these guys.
I don't have any in my haunts, but just installed a bunch around the outside of the night club as basic accent lighting and landscape lighting and really like how it turned out.