I got a free A600 about half a year ago, the previous owner told me it was defective and I could have it for just the costs of postage. Since, then it has been sitting in a box somewhere - I haven't even tested it yet :-D
I like the way it looks - it's a cute little machine and for general purposes I don't think I would miss the numeric keypad. I can't think of any downsizes since I haven't used it yet....