For 40M euros I would bite their hands off. Well worth a punt. He can play anywhere across the frontline and the sort of player who can unlock defences.
Yes, he hasn't quite fulfilled his early promise but you know what they say about form vs. class. You will never get much upside with the signings Liverpool and midtable clubs make (usually 1/20 pay off), but we are a top club and top clubs have to pay for the real deals or lay their bets on players like Götze.
BTW, let's stop assessing 23-year-old signings relative to whether Rooney may end up in midfield. FFS, he is 29, look at how quickly RVP went to pot... we won't get anywhere if all squad decisions revolve around fitting Rooney/keeping him happy and such.