Its not a matter of "getting used to" friction. Its the difference between an automatic tranny and a stick shift. You just know how many gears you need and throw the shifter. Sram has an STI that throws 3 at a time.

Trim is great and honestly friction is easier on a 9/10/11 speed than a 6/7/8 just because of the tighter spacing of the cogs. There is less room for the chain to skip off the cassette. I run a double front and 9 rear. My hope is to save for a Campy setup, but I like my friction for commuting. There isn't anything to really break, nothing to rebuild and the parts are cheap.