I've had numerous fun and games with these tabletop DWs Andy. I sometimes think it is my punishment for living alone and still being lazy enough to want one...(I do use it, at least every other day).
First was an ultracheap Proline. That blew up with a big bang within a year.
Then a Bosch which lasted two years before dying. And Bosch treated me really crap, by patching it up poorly until it was out of its two-year warranty by which period they didn't want to know.
So I whinged at John Lewis about that a lot (I had bought the five-year warranty) and they gave me a more expensive one as a replacement (Zanussi) although I've only had this one a couple of months so I can't pass judgement on it yet.
I dunno if I'm unlucky or what. But a) I have no space for a proper one and b) you need loads of crockery to run a big one otherwise you wouldn't be running it full.