In the spirit of this constructive discussion i want to say something more. When looking for motors after i decided i will go with cheap Chinese servo. Then i saw a Leadshine AC 220v servo at ali axpress. As leadshine seemed at that time to be a better choice i was ready to buy until i read this review: 06/01/2009 - Servo Drive Review and Comparison

It seems the jump should be straight to good brand servos, as the cheaper servos have some inherent problems and lacking of their own.

What i wonder after i read the review for the Leadshine servo is about the closed loop stepper and its control. It seems quite good on paper, but i still couldn't find a review from a real life implementation on a machine. I mean, would it stand well to what it promises?

There is also one possible combination that i believe will be nice, better and maybe even cheaper. Closed loop stepper/ stepper with encoder/ + second hand motion control board with its brand stepper drives , usually in the form of tight fit daughter boards or in the same enclosure. That sounds better to me , if one is ready to jump in the head ache world :-)