From what Ive seen I think he will end up being a massive success for them but probably not for another 12-18 months, he isnt exactly Drogba Mk II in that Drogba is often described as a battering ram but he is actually quick skillful and has great technique. Lukaku looks more like a Carroll style battering ram without the finesse of Drogba, they currently dont have any decent supply from out wide so Im assuming he will have to bide his time for Villa Boas to replace the old guard (Anelka,Drogba,Lampard,Malouda) before he can really stop into the spot light, for €22m I think they have gotten a good deal