Welcome to the forum, glad to have you join us. 
Any drawbacks to or problems with the PT1911? Not in my experience. The only gripe that I've heard surface from time to time with some is that they don't like the finish, or more specifically, they think it's too thin. Personally speaking, I don't find that to be the case with mine.
The only other thing, and it's minor, is that most don't like the factory plastic grips and opt to change them. Again, not a big deal.
If you purchase a PT1911 have no worries. You'll have an excellent representative of the 1911 breed, period.
Any drawbacks to or problems with the PT1911? Not in my experience. The only gripe that I've heard surface from time to time with some is that they don't like the finish, or more specifically, they think it's too thin. Personally speaking, I don't find that to be the case with mine.
The only other thing, and it's minor, is that most don't like the factory plastic grips and opt to change them. Again, not a big deal.
If you purchase a PT1911 have no worries. You'll have an excellent representative of the 1911 breed, period.