I have it.
It fits into its spot, but the space is not well utilized. There's a big mouse hole in the bottom right corner of the box. The box volume is not as advertised, it's .3 cubic feet. I had mine extended and it's .4 cubic feet so there's not enough volume for most subs to work correctly. If you have a 95+, you have to move the power steering computer, remove several mounting studs.
The construction of the box isn't good either. I was measuring the volume using water and found several leaks in the fiberglass. There was silicone smeared in various spots inside my box probably to plug up a lot of these leaks.
After fixing the trim ring which broke because the sub was mounted in it during shipment, I discovered another problem which others have encountered and that is when you push the sub, the face on the box will separate. This necessitated a some fiberglass repair work.
The grill made for it is covered in box carpet and mine was covered with spray glue so it made for a very restrictive grill.
You are more than welcome to take a look at my gallery to see the pix.
Here are my ratings on the box and such:
Customer service: 0/10
I would advise you to either have it made locally, or wait for that new NSX system that is coming out soon.