It's better for my back than my old mattress (a Reverie with the adjustable cells), but if could be just a bit more firm, I sink into it a little more than I'd like, and you can't really sit on the edge of the mattress, but, for the price, it's very good.
After a year and a half of waking up with back pain, we switched to Tuft & Needle. One night’s sleep on the T & N, and my back pain is now completely gone. We love the feel of the foam mattress. It is incredibly cozy, but firm and durable. We have already recommended it to several of our friends!