I've had my Instride for a couple of weeks now and have been using it twice daily for at least 30 minutes since. I sit at my desk/table and watch TV or work on a project in my comfortable office chair and peddle away! Because of it's tendency to scoot on my ceramic floors, I have lashed it by it's sturdy handle to the pedestal on my chair and voila. It was simple and easy to assemble, came with the tools necessary, is well built and quiet. It beats a bike because of the comfort factor.
It has a couple of minor design flaws: the readout should be backlit or LED as it's obviously going to used under tables or desks, and I haven't been able to adjust the tension that much. Otherwise it is perfect for it's purpose,
I feel much better already, I like to keep in shape by walking and that is just not possible here in the summer due to the heat. I was having problems with my knees, hips, and ankles and I am already much improved.
In short I love it and recommend it to anyone who will listen. It's an economical choice as well.