Need some help here need onfo,going to buy daughter a 150 tell me what you guys think of the UNISON 150's or any other brand of 150.  

The cardinal rule in buying any ATV regardless of size or brand, is check out their service department. See how well run it is and look at the machines in for servicing. I find you can get a more accurate picture of a quad's quality and that of the dealer as well looking behind those doors.

As for a Unison, no idea. We have not been able to try one. That size is pretty uncommon in ATVs - sounds like a knock off of a Honda CRF150F engine in a ATV frame.

If you have reputable dealer who is able to get spare parts, your daughter fits the ATV and is old enough to ride that displacement, then go for it.

Bryan