If the most negative thing anyone can find to say about him is that they're not sure he's going to be taking a starting spot from Coquelin or Cazorla yet, then I think that's fair enough. I mean is anyone really likely to predict anything more, given the jump from the Swiss league to the Prem, and the fact that he's making the switch mid-season? Even if you thought he could be a future Ballon D'or winner, you'd probably still err on the side of caution here.
Besides, there's no shame in sitting behind those two right now anyway...
http://www.skysports.com/football/ne...o-ronaldo-rank
(See numbers 21 and 22 on the list respectively)
Based on the bits I've seen and read about him though, it all sounds positive. At the very worst I think he'll end up being a kind of midfield utility man, who has a great attitude and work ethic, and who can provide a bit of cover as either a defensive, holding, or box-to-box midfielder when needed. At best, I'm hoping we've unearthed another gem for peanuts. Obviously it would be great if it's the latter, but even the former would be welcome, given out current needs!