I was referred to Plumber MD by a friend of mine who had used them. In the past, I've had to deal with some less-than-good experiences with plumbers/contractors in general. Morley and the rest of his team from Plumber MD were the exact opposite of that.
For starters, their quote on the work to be done came in well below the estimates of a couple other companies I had come in to provide quotes. And on top of that, the final charge was exactly what I was quoted at... no additional/hidden charges.
Once we decided to go with them, it was really easy to figure out a time to have them come in to do the work, and they were really accommodating to us as well, taking into account that we have a newborn at home and trying to do the noisy work only when she wasn't napping.
These guys know what they're doing, and make sure to communicate with you anything that you need to know. If they have questions about how you want something done (ie. placement of drains/faucets, fixture selection, etc), they make sure that everything is clear before proceeding with the work.
In the end, the best thing I could probably say about them is that I will be referring them to anybody I know who needs plumbing work, and anytime I need somebody in to work on my house in the future, they'll be the first (and hopefully) only call.