I mostly bought this set for the dead-on original Mini, which is appropriately small even compared to the other Speed Champions models. However, the rest of the set is also really nice, the off-road "Mini" is nicely detailed and there are a lot of extra accessories which make for a nice little display.
The build itself was not particularly challenging, so would suit a younger petrol head or Lego fan as well as adult collectors looking for a nice little display piece.
Would have preferred the opportunity to just buy the small (regular) Mini rather than the monster truck version and everything else that came with it but bought at heavily reduced price so not all bad. Lots of stickers which isn't great but mainly bought for the small Mini model, which is excellent.