Oh hell no dude don't waste your money on that, listen to bippoptl (lol sup bro!) Like everyone and their mom says here tho basics is really not that difficult at all and you, like the other bazillion people that pass through the academy and the basics course year in year out, will do just fine. The only thing if anything that I would be concerned about is your facility type/specific simulated training that you will receive during the final portion of your stint, (whether you are Tower, TRACON, or Center.) That is where your real focus should be, you can study the rules and techniques on how to do everything but what matters most is when it comes time to apply and actually do it. Thats my $4.20!