I have had one for about 10 years, when I was a bachelor, I loved it but it is one that has the option for both sides to adjust to their preference. Sleeping by myself, with the settings the same on each side was great, I loved it.
After the gf, now wife moved in, she adjusted he side. This makes for a dropoff in the middle of the bed because I'm a firm, she's a soft. If you end up moving over there while sleeping or trying to cuddle, whatever, it can be very uncomfortable. It has messed my back up big time, I get a better sleep on the couch. I'm in the middle of a "cutting the wife off" in protest to get a new bed, its not working, in fact, I think she enjoys having the bed to herself.
After the gf, now wife moved in, she adjusted he side. This makes for a dropoff in the middle of the bed because I'm a firm, she's a soft. If you end up moving over there while sleeping or trying to cuddle, whatever, it can be very uncomfortable. It has messed my back up big time, I get a better sleep on the couch. I'm in the middle of a "cutting the wife off" in protest to get a new bed, its not working, in fact, I think she enjoys having the bed to herself.