Honestly, I think the comfort of a mattress is completely personal preference. I had an $1800 mattress that I sank into and it gave me horrible backaches. This one is the best you can find for your money. It has a nice pillow top but is firm enough to avoid back aches. This is actually one of the best finds I found I Amazon.
I find it very comfortable. My husband and I have very different tastes when it comes to firmness...but we both love this bed. I find it very supportive. I believe the weight limit is like 700 or 800 pounds.
I’ve had mine about a year and the top is soft but there is no give. I’m a side sleeper and I wake up with hip or back pain most days. I suspect batches may be different because if all were like mine, there is absolutely no way this mattress would have four stars. I’m looking for a replacement.