I use it when I need to change baby outside my home. I use the cover and the mattress without attaching them. The mattress folds and unfolds quickly. It is washable (super convenient). It is not very thick, so not very comfortable if you place it on a hard surface, but I often have a towel in addition to the soft side as I slip underneath. At the same time that is why it is so small. The kit allows to cottons and qq layers for walks. I also ranks qq unpdt and trash bags for pocket change.
The two parties scratchent between it, the only downside that I will have for the "hook" scratch clings to other things I put in my diaper bag "light" (wool sweater or sock) . Otherwise I am happy with this purchase.