The good is the variety. Its one compact map, with endless things to do. Drag racing is fun, crawling is fun, sand track is fun, and mud racing course is fun. But it struggles on some parts. For starters, the oval requires teleporting to get into, which is fine but annoying sometimes. There's also a small patch of grass in turn 3 that sticks through, small but kinda messes with my OCD lol. Also, the mud racing course has a much better method on the transition of mud to dry ground, HOWEVER, the wooden pallet underneath isn't long/deep enough and your truck might get caught on it, blowing a tire or stretching it.
Overall, a good download.