Hi tired of pillowtops,
I would be very cautious about using other people’s experiences on a mattress as a guideline for your own choices because two people can have very different opinions and experiences on the same mattress and a mattress that is perfect for one person or even a group of people may be completely unsuitable for someone else to sleep on. You can read more of my thoughts about mattress reviews (as opposed to reviews about the knowledge or service of a store which can be useful) in post #13 here.
Post #13 here also has more information about the most important parts of the “value” of a mattress purchase that may be helpful when you are comparing mattresses.
I’m looking forward to finding out what you end up deciding … and of course any other comments or questions you may have along the way 
Phoenix