electric mounain bike crank motor BFLEK36-001 BFLEB26-003

Does anyone have test information on the mid position crank motor for the SUZHOU BOFEILI BFLEB 26-003 BFLEK 36-001, BFLEM36-001. The motor is 36 volt the crank turns at 108 rm @210 watts an 180 RPM @350 watts. this appears to be about twice the speed the crank should turn. Does anyone know if these mountain bikes worth buying?