I’m on my 5th summer with my Torrid. I’m 5′ 11″ and about 185#, big chest and 33″ waist. The medium fits me nicely over light midlayers. At 200#, I think you are getting to the upper end of a medium fit. I don’t mind an ‘athletic’ fit in my puffy, but some folks want to put more layers underneath or want a more ‘belay parka’ fit.
I got the 7d/7d custom. The fabric is holding up very well. I got one small hole on a sleeve that I fixed with tenatious tape. No problem. I really only wear it around camp or briefly when warming up when first hiking for the day or after breaks, so I am not subjecting it to many snaggy brush/rock encounters.
Overall, I like the fit and performance. Very light, compressible and durable for it’s weight in a synthetic puffy. I like the close-fitting hood. The only thing I would change would be adding a small (phone sized) chest pocket and replacing the elastic wrist openings with a folded-over lycra ribbon. Oh, and it would not kill EE to do a #5 main zipper. Otherwise, it’s an excellent piece.