Bloody hell, it is massive. Like slap-a-bass said, you might have some issues pushing that thing around unless you have a squad of roadies.

And for a lot of money, you surely want to hear what it sounds like first, through a bass similar to yours perhaps. Also, I've never heard of the company, and wouldn't trust all reviews on Musician's Friend.

Nevertheless, it looks quite the package, I'd just recommend seeing how big the thing is in person, how heavy it is, how it sounds, and introduce your road crew to it
Basson makes purportedly incredible cabinets. I've never tried one, I doubt there's one within 500 miles of here, but I've heard only the best. At that price range you're not going to find a lot of bad quality gear, you really need to try out all your options.