It really depends on you and how much you want it.
The worst thing about installing Gentoo is the time it takes to get the base system and all desired packages compiled. The rest of it is just knowing your hardware and then reading the installation handbook and being sure to follow it step-by-step. Having some idea about your desired partitioning scheme is good, too.
Some first-timers get it on the first try, while many others might try it 5 or 6 times before getting it, and then many others just give up.
If you really want it, and you know you do... you can do it!
Good luck with it...
