I hope this one isn't the same one we bought, because that's the same price we paid for ours. While the foam is extremely comfortable, the foam did not last. One layer compressed and then the whole thing was no longer comfortable. We went with a firm pillow top this time and I really love it, but it gives up one big benefit of foam - you don't disturb the other person when you come to bed after or get up before them. We switched to a different, thinner base pad and that seems to have helped, but it is more firm now.
That isolated feel is great for most things...
There's a bit of controversy with those memory foam mattresses when it comes to having sex.
Yes, this would be the one major drawback to them IMO. There's no controversy IMO, the foam can be a hindrance for sure.