Anyone got a 60 inch kooltube?

I really enjoy kooltubes so far. whilest reading a fav growing book of mine i saw this and was amazed at the possibilities. Anyone have experiance with these? Any feedback on them?

No personal exp. With em but my local hydro shop has a few different kind of systems set up in a back room growin veggies and have 2 of them 5' coolubes loaded with 2kw a piece on 4' movers over a 20 pot bato bkt system with 8'+ tall tomato plants.. killers for sure.. $259.00 beast