Yep, I got the one suitable for carpeted floors, the only gripe would be that it does move a bit - they also do one for smooth floors too. I haven't washed mine yet, it's the fawn one and seems to hide the dirt quite nicely too! I do hoover it once it's dry and any obvious muddy bits seem to come off with the hoover.
Edit to add: All the reviews on petplanet seem to give it 4 or 5 out of 5 and loads mention that it doesn't move, when I say move about I mean by a few inches but it's annoying as the edge kicks up against the skirting board. Worth the annoyance though as like I said it really does work muddy footprint wise.