I got this to enclose a washer and dryer outside. It was easy enough to cut holes for water and exhaust. The box itself is sitting on a concrete pad. It's a bit flimsy and doesn't stay 100% square. It is also VERY hard to assemble, it took us like 6 months to get the nerve to finish putting it together. Comes with a HUGE amount of styrofoam that needs to be broken down to throw out and made a huge mess.  

Pros: looks good, does the job
Cons: hard to assemble, a bit flimsy, styrofoam packing makes a mess