best servo drives

Ive recently been looking to upgrade frome stepper to servo motors on
my plasma table, does any one know wich is the best?

Gecko
A guy from flash cut called me today and told me that geckos were not
accurate and that they missed steps? Is this true or a sales man
doing his duty to put down everyone else?


Rutex
Hows shipping, I see that they automatically tune themselves?

Any other"lower cost" drives out there?