I think it looks good on paper, BUT its a lot of money to save up and send on this! If you are rich and have the cash to splash then yeah I would jump at it!
I looked at the smaller 15GH miner which is a little cheaper, but they are all pre order so time would not be on out side with the increasing mining difficulty.
When does you friend receive his two?
November 2017. And I'm very curious to know if the ROI is as fast as he thinks, and how profit sustains over time.