[gsx-lex]

Hey everyone , just got an E90 and the paint is absolutely fantastic and I'd like to keep it that way. I'm considering getting PPF done (DM me if you have recommendations in the MD/DC/NoVa area), but am slightly apprehensive. A quick search online seems to suggest that some people love it, while others complain about scratch marks, bubbles, etc.

For those of you that have gotten it done:
Did you do that entire car or just certain sections (and why)?
How long did it last (or is expected to last)?
What sort of maintenance to you do for upkeep (regular car washes, avoid certain soaps, etc)?

Thanks.