I've had this mattress now for over 3 weeks.  I was very dubious about buying a mattress without trying it first but I sort of did my online research and came up with this one.  Wayfair was selling it at a really good price so I took the plunge.  So far I'm very please that I did.  I'ts very comfortable with just the right amount of firmness that I needed.  My first Hybrid mattress and hopefully, not my last.  I noticed that some tended to take a while to get used to it but I found it very comfortable from day one.  Maybe that's just me.  Just hope it keeps its shape and firmness for a few years at least.