At that electricity cost, it will still take 9 months plus to break even (without considering rental/staff/VAT/shipping cost). With those other costs included, it will be longer.
The risks:
-New stronger machines will come in and damage current returns. There are farms in the past that have gone offline with weaker machines like S7. There are also bankrupt mining farms like KNC.
-Warranty is only 6 months and it takes longer ot break even.
-Difficulty climbs even higher than expected due to new asic manufacturers
There is also the risk of bitcoin price going downwards and never going back up or just bursting,etc. Nothing is ever risk free. U have a higher chance of breaking even but it is not a sure thing.
Lot of solid points here. I think this machine is geared to only a very specific user. Either super cheap power, or some alternate motive beyond pure pricing (alt coin speculation, etc.).
I think the V9 appeals mostly to people who want to learn about mining, but don't want to invest thousands of dollars up-front. If I were just getting started, the V9 would be worth the money just so that I can make sure I know how everything works before purchasing a more efficient (expensive) miner. Besides, lots of people don't mind using these as glorified space heaters that earn a little money to offset the electricity. I have a neighbor using some D3s for that purpose specifically.