Have been using older Schwinn Airdyne at the gym. I was able to find an Airdyne AD2 at a local retailer and it was solid. I was seriously considering the AD2 comparing on the bowflex site. Does look like much difference until you look at the user manuals. The AD6 design is closer to the original. Solid, smooth, and I like the fact it displays heart rate from my Polar chest strap. I ordered from Sears online without ever seeing one. Sears delivered 20 minutes into the promised 2 hour time window. Very pleased all around
We bought this as a gift for us to stay in shape. I ride it every other day for 25 minutes and like it very much. It is very well built and sturdy. We like being able to workout your arms and legs. The assembly was straight forward and it doesn't take up much space. It is a bit noisy during riding from the front fan. My biggest problem is the seat. The seat always wiggles a bit loose from side to side after a few rides. I would think a through bolt type of attachment would be more secure than the metal clamp with the sinch bolt of the seat, on the knurled seat post. We have not had it for over a month yet, so we cannot speak to long term reliability.
I use it 5 days a week for fitness. It is very heavy and harder to move. I like it's quietness. Based on my seat position I find the monitor hard to read. I have a mini battery light to shine on the monitor. Overall if is very sturdy and I am sure will last for a long time.
It's easy to exercise in the convenience of my home. As I age, 67 yes, it's not as easy or safe to ride my street bike out on the roads. Now I can safely exercise at home. I'm happy and my family is happy.
It's an excellent Bike. I'm very pleased with this product.