So far, it's great!  I've not owned a memory foam mattress before, and I was a little worried about ordering it online.  Knowing Wayfair offered a 100 night guarantee sold me!  And I am glad I did, because I am so pleased with this mattress.  It is super comfortable, just the right firmness.  As long as it holds up over time, I am 10/10 happy with the purchase!