My mom seems to really enjoy using this machine. It's easy for her to use - just sit down on the couch and start moving! While I'm happy she's "working out" in between exercise classes at the senior center, I had hoped (even assumed) there would be an adjustment dial to increase the resistance as she gets stronger. But there is no such thing. It is what it is. I may try to rig something up with stretch bands. The equipment itself is sturdy and well made. Assembly was a little confusing because there were some little parts which weren't shown on the instructions. I still don't know where they were supposed to go and left them off. I think for the cost of the unit, it should've included some method of adding resistance.