Got mine yesterday. Played with it for a bit to figure out the best way to store it. The jack and tools fit under the tire. I hooked the jaws of the jack on the hold down so that it wouldn't rattle. Put a block of wood under the tire as well. The only issue with the kit (and I called the vendor about it) is that the socket provided doesn't fit the existing lugs well. It is 1 mm too large. A 6 point American socket fixed that.

The trick for getting it to fit in the well is to lift up on the back of the spare some to relieve the friction on the carpet in the front. The tire will then slide all the way down and the cover will fit perfectly - there's probably an inch or so of extra room.