We originally purchased the medium Pro Adapt Hybrid and found it was a little too soft. So we exchanged it for the Pro Adapt firm "not hybrid" and, boy, is it firm! I was hoping to exchange it for the exact same thing, but they don't make a Pro Adapt Hybrid in the firm. We are trying to get used to it, but I'm afraid we will have to put a soft topper on the bed to get comfortable. I am grateful that the exchange was so easy with no questions asked. I expect that this mattress will last us years!
We've been searching for years for a mattress that works for us. We've read all the reviews, ratings, and have spent money on 3 mattresses in four years. It's still early (about a month) but I think we've finally found it in this mattress. We're side sleepers, and were looking for good support, firm alone the edges, and a confortable top that wouldn't hurt our pressure points. This mattress provides all that - we've been very pleased thus far. We've tried "highly rated" but lower cost mattresses that were supposedly of great value, but looking back I wish we just spent the money sooner and got this Tempurpedic. It's worth every penny.
This mattress feels OK, nothing that is making me feel like it was worth the several thousand I spent on it. I wont know if its really worth it until I have it for several years. If I was reviewing the base I purchased with it I would say that is awful... but thats a different review.