I went to Brassard and I'm happy to answer any questions you may have, but I'm very satisfied with my results. He does it in two hours because he partners with another surgeon (and less time under anesthesia is always better/safer). For your purposes, every woman I was there with got 5.5" of depth or more except for the woman who was less than 1" erect - and she actually got that depth too, she just had to have a small skin graft. 4" is perfectly sufficient for his purposes. He generally likes to stop around 5.5"-6" so he's not the best choice for someone who wants *maximum* depth, but he's capable of producing at least adequate depth for almost anyone. Brassard also produces a typically "tidy" look with small labia and tucked inner labia, which it sounds like you might like?
(Short review : I was orgasmic in my sleep 3 weeks post-op, up and around and basically back to normal except for dilation by about a month, and the aesthetics are good enough that a gynecologist mistook me for cis.)