Not the worst, not the best. 
I’ve spent months looking for a new mattress and settled for this one. After a few weeks, I’ve noticed you start to almost “sink” into the mattress and when you roll over, you almost have to pull yourself out of the hole you’ve sank into. Also, been having the worst neck pains ever. Never had this before with my old spring mattress. My only thought was that because you sink into this mattress, it shifts the way your neck lays in the pillow and puts more tension on it. I’ve started just not using a pillow at night. I plan to keep this for about a year just so I can feel better about getting my “money’s worth” and then switch to a spring mattress with a pillow top. Purchasing this mattress was not the worst mistake ever, I mean, it’s a decent mattress and I think anyone would really enjoy it. Just wish I would have looked a little bit more.