Very comfortable!
I was a little nervous, given the price, but I can say that at least for the first 10 days this mattress is as comfortable as any others on which I've slept. Great balance between softness and firmness. I only needed to leave it for a few hours after unrolling it. Shipping was delayed slightly, but this happened after UPS had already collected the package so it doesn't seem like it was the vendor's fault. We'll see how well the mattress holds up over time, but unless it gives out *very* quickly I'd definitely recommend it, and not just as a budget option.
By Stephen B.

