Definately a good family film and really appeals to fans of the series. I't not a perfect movie but that was never my expectation. Idris handled Knuckles better than I thought (and I was already impressed with the trailers), Jim as Dr Robotnic never fails to deliver, the action scenes were much better than the trailers, the third act is very nice and the end credit scene is one to stay for. I liked what they did with the Master Emerald and agent Stone is funny. I enjoyed some of the human scenes but I do think those scenes could have been made shorter and maybe reduce the time by around 20-30 mins to tighten up the movie more but in all it's a small critisim as I came to see the Hedgehog and his adventure.
On a 5 star rating I give this a 4.3/5. You can rewatch this and enjoy it.