The whole point behind Gentoo is to provide total control over everything in the distribution. Yes, there are no gui install wizards. There are no gui configuration wizards, and there are a boat load of install steps and options. If this isn't what you are looking for then you probably don't want Gentoo.
If it is something you'd like to try then go ahead and give it a try. Don't be afraid it is difficult just because it is in text mode
They explain all the command line programs in the install help. When you boot off the CD, change the root password, open up the website they tell you has the install docs (they even tell you how), and log in on the second virtual consol (CTRL+ALT+F2, CTRL+ALT+F1 to switch back) and follow the directions.