I've been very hyped on Farrell as he's got the high IQ and skill but he works hard and despite his lack of size he will go to the dirty areas. He was easily one of the best players in the NCAA last year and while he needed some time to adjust to the AHL, he was playing very good hockey though you can clearly see the lack of speed, skating, strength, mass, height are all issues for him.
He's been out with an injury so we'll see what happens when he gets back but he's going to see more NHL games that for sure, right now he needs to focus on just trying to mature physically as the quicker he can get, the stronger he can get is only going to help him as he knows what to do with the puck when he has it and can get it to you but there's a lot of work yet to be done.