Anyone try spindle motor from Mototecnica

[casi]

I ask at http://www.mototecnica.it/ for spindle motor price C51/60-A-3822-300 serie and it is about 850 Euro.
Anyione try spindle from this serie and what is the difrent between this spindle and chinese spindle 3kw from ebay http://www.ebay.com/itm/3KW-AIR-COOLED-SPINDLE-MOTOR-ENGRAVING-MILLING-GRIND-GQJ-/260758417978?pt=LH_DefaultDomain_0&hash=item3cb669b23a#ht_4111wt_1185

[danilom]

C51/60-A-3822-300 has 3.3kw power and ER25 collet, and chinese 3kw and ER20 collet.