After much investigation to find the right trampoline we bought the compact round for our 3 year olds birthday. He loves it. It is a very good quality trampoline and I'm sure he will have years of enjoyment using it.
The only criticisms I have is 1) how hard it is to install. It ended up taking us two days and three people to finally get it right. We watched an installation video online which made it look easy. It was in no way similar to the video or easy. We got there in the end though. 2) I am a bit concerned that there is no type of padding around the edge/rim where the matt is joined to the frame. It is very hard and you can definitely hurt or injure yourself if you fell on it
Apart from the above it is definitely the best junior trampoline on the market, in my opinion