Fulham didn't actually pay £11m. The fee was about 6-7 million, with a load of add-ons and clauses, and £11m is the very most it could rise to but it's unlikely that'll happen.
He's practically kept Fulham up this season. Won the Fulham POTS with about 60% of the vote, the next closest was their keeper with 18%. Scored 19 goals and got 14 assists which for a team that finished 17th, and were in and around the relegation zone for the majority of the season is pretty impressive. Very tidy player, good on the ball and from set-pieces He's actually very similar to Hooper in his play, but is a fair bit quicker to Hooper, so can play the up front by himself role. Looking on Fulham's forum as well he seems to have a great work rate. If we could get him for a relatively low fee (£5m/6m or less, which is albeit a little unlikely) then I'd be very happy with that.