Last year, I needed to buy new hot water heaters for my house. An former co-worker referred me to Erspamer. I called them for a quote along with 3-4 other plumbing companies. The quote was witin $100 of the lowest bid, and the sales guy/tech who came out to provide the bid was down-to-Earth and approachable.
I bought two high-efficiency hot water heaters, 40 gallons each. They needed to be power-vented outside.
They arrived with two Rheem units. The installation was smooth and flawless. It's been a year and a half since the installation, and I've not had any problems.
I highly recommend Erspamer for fair pricing and quality work.