I had it as a freebie with a Total Off Road subscription, and picked the PSP version. It's not bad - I wouldn't have paid full price for it but I've only found a few minor problems:
Some of the race modes are confusing. I realise in "Expedition" the aim is to collect the artifacts, but I can only find two or three when it wants five! Likewise the one where you have to pass through 15 checkpoints is odd - I have tried twice, was leading at the final checkpoint on both occasions, and got "you lose" :-k
Aside from a Defender 90 doing about 100mph (I suppose it might be tweaked!) I thought the handling was ok, a lot better than some games I've played.