Mostly, this felt like an 80s family movie to me, which is no bad thing. It has elements of ET, Short Circuit, War Games and Flight Of The Navigator. There's really nothing original in there but it's all good escapist stuff.
The basic gist is a kid finds a cute AI robot, the movie is then about him and his friend getting to know it, and then having exciting adventures with it.
There are a couple of weak actors, the bad guy doesn't convince and the father is a bit wooden, but pretty much everyone else hits the right note. It all has a good steady pace, and overall I was entertained.
I'm pretty sure younger kids will love it.