Not bad. It doesn’t mention what kind of tires it has–you’ll want to make sure they’re trailer tires. Probably not an issue with the enclosed, but some open trailers will come with passenger vehicle tires that won’t hold up. Also, you’ll want to add something inside to the floor to keep the wood from soaking up all the fluids your car will inevitably leave behind.
Then there’s the other stuff you’ll decide you want later…workbench, cabinets, wench, hooks and shelves all over the place, etc. Those can certainly be added after the fact though.
Looks like a good buy to me.