We bought our daughter (9 months) the swing for Christmas. Unlike other spine harmful baby swings (-hopsern) this is a great alternative. Unfortunately, the swing (only ours?) Has a small flaw. The substance, which acts as a backrest, has a fold, you also may not be corrected. This our daughter always slips on the left side of the swings, because it can not hold its own. We had actually expected it sits like in a hammock, which is not the case.
In itself, however, it swings very much in the swing, for 10 minutes I push there times one eye and hope that it works better if you can sit up unaided. For me definitely a better alternative to said other baby swings or -hopsern.