Brushless Speed Controllers

[Dazzler]

I have only ever used Novak GTB's, I don't seem to be able to fault them having used them since they were first released. Reliabillity has been 100% and have therefore never needed to consider moving away from using them...

But im curious to know, Is there really much difference between diferent controllers? Is it really noticable on the track? What characteristics have improved? and are these improvements really that much better?

Obviously size changes, but what about reliabillity, performance, punch, braking, operating temperatures (controller & motor), delivery/smoothness of power, quallity from different manufacturers and the customer/aftersales support!

What are your thoughts.... What are your preferences? I'm interested in hearing from those who have tried multiple brands/models. Anyone had chance to try a Novak Kinetic yet having previously run GTB's..

Are different controllers better suited to different classes with regards to the controllers at the higher end of the market.