We got this for our son for christmas and it was one of his favorite toys. We brought it outside when the snow melted. The only minor issue with it is that it's hard to roll on anything but cement. Our four year old fits nicely on it, but has a hard time rolling around the grassy back yard while sitting on it. His solution? Just drag it into the garden and dig up the plants... The joy of having a boy!
This thing is a pain in the [...] to install. I just spent 45 minutes putting it on my daughters bike. The thing that makes it such a pain in the [...] is the way they have the Velcro facing. They have it so when you attach it to it's self it actually has to go under itself and trying to put it through the peddles is what is the problem. I have tiny fingers and I had a hard time with it. At one point I actually had to use a pair of tweezers to help me. Over all the product it's self works it's just a pain to install. So I don't suggest you put it on to have to take it back off again in a short period of time.