A good spin instructor can keep you motivated throughout your session. A bad one will leave you counting down the seconds until you can go home.
Keith Thompson of KTX Fitness is definitely from the first camp.
Thompson combines spin with dance-like arm movements to help his clients push themselves to their limits.
His classes look seriously hard, but also seriously fun.
Just look at these guys go!
Thanks to the team at UniLad for introducing us to this marvellous man.