While we haven't opened this yet, since it is a Christmas present, I did take a good look at it before wrapping it and it looks to be a sturdily made toy with plenty of interactive features for our 4-year-old.
My son loves this toy. He can play with it for hours. My only complaint is that I can't find a place to get replacement parts. This thing comes with so many pieces (which is what he loves about it), but we've already lost one because it came off the string somewhere this morning. If someone could point me to a place where I could find replacement parts, I would be thrilled.