Karina, I just had my seat (same as the one you're getting) re-fitted today at the Ambulance. Lucky I asked him to double check DH's attempt cos it didn't seem right to me and it wasn't in tight enough!! This wasn't actually Andy's fault cos he said that most people do it exactly the same way and it's just not safe enough. Anyway, he said bubs at least 6 months (and usually trying to sit up) before turning around but if they're happy rearward then leave them that way for as long as possible. The seat looks very comfy too and Oskar seems to be even happier in it than the capsule!