I purchased a Tempurpedic a few months ago because everyone I've come across that has one absolutely loves it. I had a Stearns and Foster pillow top for more than 10 years before that and I suffered from back, neck, and hip pain for the last few years on it. When I started shopping for the new mattress, I thought I needed something firmer because my old mattress was soft. However, I made the mistake of equating firmness and support, which is not true.
I first purchased the most popular Tempurpedic model, the Rhapsody because I thought it was firm and would provide better support. However, it was like sleeping on a concrete slab, and I hated it the first night I got it. I had been warned that the Tempurpedic foam has to "relax" for quite a while before they soften up, but after two nights, I knew it was not the right mattress for me. I realized I prefer a soft mattress, but I needed support. I went back into the store and the sales lady was very nice and let me try out all the models again, and I exchanged the Rhapsody for the Cloud Luxe model. The Cloud Luxe is basically the Rhapsody with a layer of softer foam on the top. It is sort of the Tempurpedic version of a pillow top.
Having slept on it for 5 months now, I can say that my aches and pains have decreased, but are not gone completely. It is fairly comfortable to me, but I would still prefer something even softer. One very big negative I have to say about it is that even after 5 months, the mattress still has a noticeable odor. When you research Tempurpedics you will read about the harmless "off gassing" process, but I had no idea it would be this long. I still notice it, but it doesn't bother me too much. However, my ten year old nephew told me it stinks, lol.
Overall, I would not recommend Tempurpedic if you like a soft mattress. It is VERY expensive and I regret spending that much money. If you like a soft mattress, check out the brand (it's either Sealy or Serta) that has a memory foam core but a normal (non foam) pillow top over it. I tried that one in the store, and now wish I had chosen it because it was softer and less expensive.