The only problem I have with Eriksen is that he needs to play as a Number 10, with an attack built around him. He has the quality for that, just not yet, and generally I don't like the position whoever's playing it. I've seen him playing for Ajax in a position similar to what Jack plays for us and he doesn't look even half as good. Still quality, but he's not a central midfielder and never will be.
Other than that, he has looked very special since the first time I saw him play a couple of years back. Going to be an absolutely quality player.