I researched rowing machines for over a month and decided on the LifeSpan rower. I've been using it every day now for the past two weeks and love it. Smooth, quiet, easy to fold up...its the best thing for the price hands down. It has a knob that allows you to adjust the difficulty and I wish it could be adjusted even tighter, but it's still pretty good. Great low impact exercise. I just set it up in front of my TV and hop on for 30 minutes each morning and it's been fantastic. Similar machines online were all nearly $1,000 a more. To get something similarly priced I would have had to get Stamina or Marcy, two brands I wouldn't touch with a 10 foot pole. Glad I bought this one, no regrets!