I'm looking for a SCART switch, and wondered if anyone had any advice?

Essentially, our TV has two scart inputs, and I've got 3 things to plug into it (DVD player, Xbox and Myth box).

I found this and this on Amazon UK, but the reviews aren't very complimentary.

Is this a problem with SCART-switching in general, or is better kit available? Or is it not as bad as all that, anyway? Should I just get something cheap until we get a better TV (or, in fact, an amp/decoder with A/V switching, which is what I really want)?