They are heavy and that is the major weakness IMO. Had did you go about riding it though? If you rode it like you F6 and pumpong the throttle then no it wont seem as good, since you will be getting more Turbo lag. I felt the same way after my first time on the Turbo.
Theres not to much room for playing with the boost since this sled is already running really high, and increasing the boost may just result in more lag. My dealer is looking into boost adjustments though

. I've heard of some 'chips' that can boost the HP upto 125-130 but unfortnuatly they aren't avaiable to the public...yet.