I bought one!

They work very well sound quality is excellent considering price. Much, much
better sounding than the original, 10 year old, Rover badged unit that it
replaces! But then it should.

The RDS works fine, MP3 CDs seem to play fine, Audio CDs play fine.

I have only one real gripe and thats the display. The lower half has a
totally useless graphic frequency diaplay that just isn't necessary and the
upper half has the track info, station name, ID3 etc. diaply. The trouble is
from my seat I can see the lower half of the display and not the upper. I
have to stoop down (impossible when driving!) to check what tack I'm on or
to find a certain song. This makes navigating an MP3 CD very difficult... it
looks like I'll either have to get a passenger to do it or stop the car.
This would have been fine if they put the useless part of the display at the
top and the useful part at the bottom. Oh well.

But for £50? Worth it, I'd say!