The booster seat from Roba is really great. I've been looking for a simple solution when we are traveling and do not want to lug our Tripp Trapp. Here, I stumbled upon the seat of ROBA. The delivery went fix, as the "construction". The air cushion is a little hard at first inflatable, but that's no problem. It has also passed the first test confidently. He makes a good impression and is easy to attach. Of course he can not compete with a traditional highchair static, so you have to have the child always under supervision, but which you should be aware. Full marks for this innovative and manifests practical product!