Looked excellent in France not been overly impressed with what I've seen since he went to Wolves. That said wouldn't be the 1st player who took time to get up to speed in the EPL.
Bertrand's age is against him too. 31 with no resell value is not a demographic we are looking for particularly. On the downslope and not really progressive enough with the ball. I think he has ability though and if we signed him I wouldn't be upset, I would though be surprised.