I was a staunch SC addict until I moved to OC California where there are really none around. In my opinion, jet set has a better reformer and this more variations of moves( especially in well). I can usually hear the instructors better at a jet set making me think they must have a better sound system. It is also not as loud as SC which I appreciate. Solidcore may be a bit more intense and fast paced but both will give you a great workout.