No didnt work out well at all because you end up leaving a dent in the mattress and it takes a good few days for the foam to expand back to its original firmness/shape; so obviously if you're sleeping in it every night you just end up carving a big dent in it. Not good for someone like me who likes to have some movement and who doesnt sleep in the same position every night.
I have had a great experience with my memory foam matress from Bensons for Beds. Bought it in December 2009 and me and my partner have slept in it pretty much every night since, and we have no dents? I sleep in different positions every night too.