Bests & Worsts Reviews from Amazon

I would like to give it no stars but that's an option on Amazon rating. Bought in May (but only used about 4 times since then as we were away for a long summer). Used to blend tinned tomatoes. Worked fine couple of times then blades in blender, chopper and whisk turned very slowly and seemed to squeal when motor ran. Called up Cuisinart and they sent me a new kit. Same thing happened. So I called again and they sent me chopper lid and whisk attachment (only blender had worked in new kit). Now I've the handstick that works very well (for how long though?), chopper grinder doesn't work at all and neither does whisk. I looked inside the motor shaft and these "stripped teeth" everyone in the one-star category keeps on about are also looking that way in mine (I hadn't looked in the original one I sent back). Unfortunately I hadn't read the bad reviews before I bought it, and it seems that this "teeth stripping" is a continual problem with most of their hand sticks. I've already spent $20 between sending it back the first time and then receiving the new parts....I'd like to ask for a total refund for the now $70+ I've spent on it but I think such a request is futile.