Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Are there major difference between the Natural and the Oxbridge model that is more expensive!
Document: I first tried a WaterRower rowing machine at a gym and really liked it. The movement is natural and comfortable compared to other rowing machines I'd tried that use a different mechanism, such as gravity, to provide resistance. As you row, it makes a pleasant white-noise swooshing sound as the paddles push water around in the cylindrical reservoir. It looks nice too... especially next to the black metal and plastic design of typical exercise equipment.The construction of the Natural Rowing Machine model seems very sturdy.
Although this machine is expensive, if you're serious about working out on a rowing machine, this is definitely the one to get.
I have had the Natural for 3 years, and I still consider that is my best purchase by far, you can not go wrong with the waterrower.
I love the sound of the water, but can easily watch TV or listen to music over the sound of the rower. Not much more to be said about that!Second, the rower is set up for perfect alignment. Most rowers have the foot pedals below the slides that the seat moves on. This rower has the foot rest above the slides with an elevated seat. It may not seem like much of a difference, but it seems much more comfortable to me.
Running and elliptical training was just too painful. Rowing is low impact exercise and I have noticed a difference in my ankle pain in less then two weeks. The WaterRower is a great machine well designed, easy to assemble, and stores so it does not take up too much room. This was probably the one benefit that really sold me on the WaterRower. When finished with your workout the unit stands upright and takes up less space than a chair.
Water rower has an aluminum model also but a higher price point. I like the wood frame. My wife does not object to it as much. However, C2 has a small edge as I had mentioned, including the foot rest.Overall - I am happy enough with the water rower to keep it. My whole family uses and likes it. I would not say its 5 star though.
I also like the way the paddles engage in the water; it's a very smooth pull and release, and moving the mass of the water instead of a dialed down tension feels more natural. As someone else also commented, the seat (at least on the wood version) is incredibly smooth and solid; no wobbling at all.
For most people, that won't matter much, but for someone short, it makes a huge difference. I can actually get far enough forward to get a complete and proper rowing motion, improving my workout.Third, the rower can be fixed. This is great as I actually use the equipment I buy. I know things will break over time and I would prefer to be able to fix it than have to buy new because one part wore out.
Amazon gave me a $200 credit for the difference between the rower with the computer and with out. After a couple of months I am still waiting for a new sensor from water rower.Vs. the Concept 2 rower:I was deciding between the water rower and the Concept 2 machine, which is in the same price range. I used the Concept 2 rower just briefly a couple of times. I decided to order the water rower instead sight unseen due to the reviews.
I have had several rowers over the years and lots of problems! I always had multiple problems and they always broke long before they should have. I've used the cheaper piston rowers, magnetic flywheel rowers and the Concept 2 (which seems to be everyone's favorite and the standard at most health clubs). Normally I'd wait and see if the rower held up prior to reviewing, but as I purchased a used model, I'd have to say it's durable.
Answer: no