I did enjoy my time with Triangle. My 11 year old son did his checkout dives with them and I felt he was well taken care of. I dove with them for 3 days. The first two, while my son was in class, I was the only non-student and had a DM to myself. I thoroughly enjoyed diving with him. I consider myself better than the average warm-weather diver, and he understood this was the case and we did some activities another group may not have done.
On the third day, my son joined us. This was the first time the boat had more than 6 divers on-board. It still worked out well and we had a great time.
I travel with a large hard-case for my gear. I was permitted to leave it nightly at the dive shop.
I had a couple of "issues" with the outfit, but nothing that would prevent me from recommending them to others. They are also my only experience of warm-weather resort diving, so my basis for comparison is low. I am sure they are much more used to low-experienced vacation divers who need handholding and to be told what to do and how to do it than the cold-weather wreck diver who dives regularly who brings all his own gear save tanks.
I would recommend them for your diving. The next time I go to Bermuda, I will probably stay on the west side of the island and dive completely different wrecks. Each day we did a reef & a wreck, different every day. No complaints whatsoever. But they do stay to a specific general area. Triangle does have an advantage due to location in that they can go a number of different directions whereas most outfitters can only go one way.
Hope this helps. PM with any specific questions if you wish.
PittCaleb