I have had my bed now for 3+ years and am so glad I bought it. I have had great night sleeps. One of the reasons I liked it was to be able to replace different sections of the bed to make sure it was working. I have had a few issues but customer service (especially Gifty) have been fantastic at getting them taken care of right away.
The reason for 4 stars is the app. The app has gotten better and am looking forward to see even more improvements.