Hello. I think this thread is very helpful and I can add some value as I recently purchased $3500 of gear through ECD - Framingham after having reviewed over 12 other stores. Here is my experience.
2 years ago, I went into ECD, told them I didn't know how to swim, but wanted to dive. Rather than snicker, roll their eyes or outright laugh in my face [like every other dive shop I called or visited], they told me to get swimming lessons and come back to them. I did and got certified, SSI OW, Nitrox, and several specialties. See below for more on my SSI Advanced.
I have been a customer of Chuck Lubold [known on here as LUBOLD] for a bit over 2 years now and can personally attest to his STRONG commitment to my diving goals and what it will take to get there.He has talked me out of thousands of dollars of gear when he could have just as easily sold it to me. He has showed me how to use the gear I purchased both in the store and pool. He has special ordered 2 NTROX stickers [a very small order] for me when I'm sure he would have said he didn't have them in stock. In short, if I were going to open a dive shop, I would try to recruit Chuck to work for me.
Last year, I purchased all my gear from them and got my OW cert from them. This year, I needed a DUI CF200 drysuit, 2 steel 120s and a pony bottle. After not knowing whom to purchase this stuff from, I actually created a RFQ [Request for Quote] formally typed it up and faxed it to over 14 shops throughout New England. Most didn't even respond. ECD was among the first to respond telling me to take several items I was going to purchase off the list, as they were included in the packeage with DUI. Other shops never mentioned that. ECD, pressed me on my choice of gear and made sure I would use what I was purchasing. I wound up purchasing all my gear from them, not because they were the lowest price, but because I trusted them more than anyone. I like them. I have very little free time, having an newborn, running a company etc. When I choose to spend time on diving, weather in a shop or water, I want to do it with people I enjoy spending time with. I enjoy walking into the ECD and Dive Locker shops. The know me and I know I can trust them.
Furthermore, Paul Adler, ECD - both location's owner, is tremendous as well. He, too, has told me to wait on gear, certifications etc until I was more comfortable in the water, had more dives, etc. Put it this way, he sets the environment for Chuck and Brendan [their fill and service guru] to welcome me and want me to go back time and time again to buy all my gear from them. I commend him for that effort.
I should say, that all my certifications were with Mike Walls, their former ECD - Brookline store manager. He has since left company [under good terms] and opened his own shop in the old ECD location in Hyannis. The Dive Locker.
http://www.capedivelocker.com/ He is a great guy. very safety focused and extremely patient with all in the class. If he sees one student needing more help, he will pull that student closer to him, without making them feel awkward and continuing with the class. In fact, the only significant purchase I have not made from ECD - Framingham, is with The Dive Locker and it is my SSI Advanced OW. If / when I move to the cape, I will probably have a tab with this guy.
I hope this helps. Feel free to PM me if you like.