I have chronic hip pain and weigh about 300lb. Was unsure if this mattress would be suitable for me. Upon delivery, I am very happy with it. The zoned springs and pillow top relief the pressure on my hips, yet the firmness is quite supportive. In the mail be, after soooo much research and reading reviews etc I am very glad I spent the extra money and got this avenco hybrid mattress. I have been sleeping very well and hope that this mattress lasts for many years to come! 
I waited the full 72 hours before I slept on it, did not notice any strong smells when I unwrapped it. It inflated very quickly, but I chose to wait the full amount of time just to be sure that it was was fully decompressed.