I've been sleeping on my queen Renewal pillow for almost two months now and I love it to death. I only wish it came in "high profile". I may have to break down and purchase a second pillow to add more loft. The travel case is a nice touch, too; it's almost as if they knew you'd never want to be without your Rejuvinite pillow (I don't!).
From what I understand, the pillows are made of a latex/visco-elastic hybrid material, and there was some mild off-gassing for about a week or so. Though I'm hypersensitive to odors, it didn't bother me. I'm assuming the thick cottony cover will prevent oils from reaching the core and causing degradation, so hopefully this is a good long-term investment.
You can't beat that $55 price tag, btw. I've only seen them online for around $100.