This is a nice hybrid mattress.  As stated, it did take a day or so to fully expand.  The mattress is both medium firm and comfortable. It takes time to get used to it and adjust, just like any new mattress.  The springs seem durable and the fabric seems quality.  My big concern was getting something that will last, and it seems like it will.  I also like the motion isolation that allows you to move around without disturbing others.