I've had one for a couple of months and have been using it in my Mardave until the B44 is ready to go.
It seems to work well - it's my first wheel radio after only ever using sticks and I seem to get on ok with it. The controller has a good weight to it and is pretty easy to set up and adjust. The blue LED is a bit dazzling for the guy next to you on the rostrum but a piece of insulating tape over it sorted that.
The receiver is small and very light but doesn't feel very substantial. Probably fine if you just install and leave but I'm currently swapping between the two cars so a bit worried about damaging it...Probably invest in another receiver - only about £30.
Not had any glitches or intereference - although no one else at my club has gone 2.4GHZ yet but can't see there being problems. The only problem I had was my 15yr old Mtroniks speedo didn't like it and the servo would glitch - now that I've changed to a newer speedo it's all good.
I'm sure people will suggest the Spektrums - but for the money I think it's great (especially when I got mine as new for £40
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