Expensive, but that is to be expected when ordering a prebuilt system, especially one with phase. Not sure how it would do comparitlvely, im only working on my first phase system. On the plus side, they seem to be very customer oriented, allowing you to custom order a computer, linking to newegg ect. for a part that they dont have listed.
First does only CPU and 2 GPU, and not very low temperatures, the unit is built by Jinu as proof of concept. Its about $1500 for the unit, its not a very hard to do thing, however I don't think phase'ing the GPU's is worth while so I no longer offer that to customers in most cases. Its too horrible to insulate the cards for 24/7 operation