My SLx Guerciotti fast and stable handling bike. Even with 74.5 head/seat tube angles it never feels twitchy compared with my De Rosa Pro or Colnago Master XL. Power transfer is good and BB area feels plenty stiff. The whole bike is a bit heavy at around 23 lbs (C Record with Delta) but I never feel the weight as a hinderance while riding. I think it is a great value for what you get.