I have a microrendu with iFi switching power supply. It includes OS, 2.7. I have used it for less than two years. Recently upgraded to the far more expensive ultrarendu. While I like the ultrarendu it has a problem working with older USB protocols that the microrendu works just fine with.
The labeling on the top of the case is a bit scratched up but otherwise everything is good. The user is almost certain to place it where it can't be seen anyway.