I looked at 4 or 5 different plumbers and companies and got different solutions and ideas from each one. Some just sent out a salesman and wouldn't send a tech until a deposit was made. Others came and said that if there was any interior work that needed to happen (i.e. holes being cut in drywall), they wouldn't take care of the repair, others still, said that what we wanted wasn't possible and suggested an older system. We ended up going with Water Heater Rescue because Bill was confident about the job (disclaimer: he was referred to by a coworker of mine but there was no commitment felt or made).
We put in a tankless high efficiency system and it works great. We ran into a small hiccup with the gas supply but they were able to figure out what was wrong and arranged to meet Fortis when they came out. They were professional and kept my up to date all along the way. I corresponded with Ashley via email and she was great.
I wouldn't hesitate to recommend them and will continue to call them when my unit needs checkups.