Product review (2 stars): I ordered two of these because two kits were less ...
I ordered two of these because two kits were less expensive than one kit plus the extra extension rods which I really needed.  One of the kits arrived without the rotary brush which is the key component to the system.  I am not returning the kit because I really just bought it for the extension rods, but the missing part says something about the quality control of the shipping department.  It is not worth the hassle of packaging and returning the defective kit, especially since I need it today.