I used to live in Beechview conveniently down the street from Sip N Spin and have been going back ever since and I don't even live in South Hills anymore, the place is that good! The laundry machines are brand new and the whole place is really clean. The staff are very friendly and the small store up front is reasonably priced. Plus, parking is free. It makes washing clothes much more relaxing then it should be.
Note: the small convenience store is gone but still the one of the best laundromat's in Pittsburgh.