I purchased the 44 inch size about a month ago and wonder why I waited so long. The no squeak unit totally is worth the extra price (as compared to the competition). I am 53 and my husband (age 55) who was skeptical about buying one is using it now too as are the adult children and grand kids when they visit. It is truly a rebounder for all ages. While I work out, I don't feel exhausted but can feel the workout afterwards so I know I am getting the cardio up. Thanks for building a quality rebounder Bellicon!