As far as the Puma Compressors, let me say this. Back in about 1986 or so, I bought one from Builder's Square, a home improvement store. That compressor was put thru the wringer until about 2-3 years ago, when the pump went out. In all honesty, I didn't do any preventative maintenance on it during that time, and really abused it. It should not have been that trusty, seeing the way it was treated.
Now, I know that they do build different models for some stores, like they did for Builder's Square, but they put their name on them. I would not hesitate to buy another one of theirs.