Needing the UV or IR is a matter for debate.
QBs been better than CMH is also a matter not yet settled.
I love my QBs and the results are great, my cmh i veg with because its a great light for anything but i dont flower in 3x3 spaces so it wouldnt suit my flower tents. It does cover a 4x4 in veg durin summer though.
CMH is a great spectrum, just not right for my situation.
Like i say for the footprint to cover a 2x4 i prefer the QB due to the shape and the way that distributes light.
I think you would be impressed with either light.