I had a no name one from a guitar shop for years, and it lasted a reasonable time, but as I got more pedals it must have felt the strain and just stopped working.
After that I got a Dr. Tone PSU10 power supply, and that just went up in smoke (literally) the first time I plugged it in, which I realised must have been to do with my pedals and the load.
Once I had ventilated my room, and the smoke had cleared, I contacted Shep on here and he gave me some great advice, and I ended up running everything from a Diago Powerstation, and had no problems since!