I did this install 4 months ago. This design is fantastic. The coating seems really tough. I installed a set of Rockville Punisher 12D1 subwoofers in it and it handles them well! The specs seemed to match as best I could find in the power range I was looking for, and at a decent price. It throws pretty impressive lows and responsive mids.
The enclosure as it ships, does not include hardware to properly secure it to the vehicle. It sits propped on top of the wheel wells and is secured between the roll bar and the back seats by only the seats latching mechanisms. The speakers weigh 48lbs each. SO that is a lot of not very secure weight, therefor 4 stars.
I've secured mine so I may let the back seat down, and that extra air brings them subs to life!