Excellent mattress for the price. Very comfortable andb it has helped with reducing my back pain during the night. The delivery was extremely fast (a little over 24 hours), which was awesome with free shipping and even a 10% discount. It's much better than the more expensive latex mattress we had.
The biggest issue is that, as others have noted, the edges of the mattress are a bit weak which isn't an issue sitting on the side of the bed but it can lead to the feeling of rolling out, especially if you're a side sleeper and close to the edge.
All in all, and excellent mattress which started as a bit of a low cost option before trying the full priced options. It's saved us the moving to the next step of mattress shopping - where things get much more costly.