Replying to Shitty beginner ski boots

Hey guys, there's a BIG problem that I'm concerned about. I just purchased the 2012 line chronic w/ marker griffon bindings. So i have great skis/bindings, not the problem. For ski boots, i rented the nordica one 45. You guys probably wouldnt know this, but its a really shitty boot designed for beginners w 45 flex. Its descirbed as a "the number one beginner ski boot to cruise on the groomers with the family" WHAT THE FUCK! IM OBVIOUSLY NOT DOING THAT SHIT. WHY WOULD SKI BARN GIVE ME THAT BOOT. sorry... My real question is that will it make a big difference when I'm skiing park, pow and trees? i cant wait till my foot stops growing... thanks