It's hard to take apart - VERY hard at times
It shakes like crazy
It won't stay drained of water - I have to stop about every 15 minutes and manually drain it, which requires taking it apart
The water feed feature is the stupidest thing I have ever seen - incredibly hard to adjust, has to be refilled about every minutes and just a general POS.
I seriously can't emphasize enough how much I hate using mine. The only reason I haven't gotten rid of it is I haven't used it in two years - because I hate it. It's a catch-22.