I just bagged this a week or two ago and must say it gave me quite a bit of trouble so I reckon 7C+. Kept falling off on the hold before the finish jug which gets really annoying, need to work fitness a bit more I think.
It's definitely a power endurance thing, the individual moves aren't particularly hard, maybe tops 7B for the middle crux section, but it's knackering and sharp. Bottom end 7C+.