This is a company, not an independent plumber. I wish there was a way to distinguish between the two.
One of the company's schedulers told me the wrong time on the phone, saying someone would be out at 9am the following day, and not mentioning a 2-hour window. I had rearranged my work schedule to be there for the appointment. I called at about 9:15 to see where they were, at which point they told me that the plumber would be there between 10:00-12:00. Luckily, they were able to send a different plumber out, so it ended up being about 1.5 hours later than I had planned.
I think maybe the plumber they sent was a bit new; when doing the estimate to replace a broken tub faucet, he had to call someone else to come over. When they give you an estimate, they are supposed to stick to that price, even if they end up spending more time. The guy ended up spending probably a LOT more time than he'd planned, because the two recommended we replace the entire shower set, not just the faucet. But they did not give me a new or different estimate for that work (their mistake!). When we got the bill at the end of the day, it was more than double the estimate. We ended up compromising, because even though it was his mistake in estimating, he did spend the whole day, and was very nice.
The plumber did a good job with the actual repair, and left the place clean when he left.
Three stars on the scheduling and estimating, five on the work itself; average of four. I would hire this company again.