Excellent, fast service!
I'm not a plumber, but Albert Nahman Plumbing and Heating seems to do a really good job. They have shown up at least twice for clogged up drains. They came more quickly than I had anticipated and did a quick job. They have a fair price and left the place clean and tidy. And the drain works! You couldn't ask for more.
The plumbers were very friendly and very clear about what the service options were. They were polite and nice. I felt very comfortable with them. I think that they're excellent as far as I can tell. A lot of other people must think so too because I see their trucks around town in lots of places. They've been around a long time.