It was pretty mind-numbing. I don't think it even gives enough exp to let you max out in a single playthrough either. You can get close if you do absolutely everything, but the last few levels require ludicrous amounts.

My bald, pink-wearing dudeShep is one of my favourite user-created protagonists ever. Most of them look pretty generic, and then ME2 came along and let me wear hot pink armour with purple camo patterns, and, well.