THL: Stay a safe distance from vertical surfaces if there are significant waves present in the area. A passing boat or ship may generate big waves that escape your attention until there is no time to escape. An example is the North anchorage of the Golden Gate Bridge (but there are special cases, e.g. rough water classes or the OWRC regatta, when there is a fast flood coming through the Golden Gate, and it is useful to be close to the wall since the current is slower there).
I don't know how this machine compares to others. I have no idea. Here's what I know: I've had treadmills and elliptical machines, weight benches and several exercise appliances from infomercials. They all work exactly like they should if you use the equipment on a consistent basis. That's where the problem comes in. I would always give up eventually and the machine would sit in the corner, covered with my laundry, laughing at me. I bought this rower without ever even trying one at the gym because I was desperate to do something (and I voted for Frank Underwood). This was the one machine I was not only able to stick with, but I now eagerly look forward to using. It started a chain reaction that changed everything. You know those incredible before/after transformation pictures you see on weight loss shows? I'm one of those guys now. Rowing is like a 'secret' in the fitness world in the way there is so little emphasis. However, in terms of results, it is so much more efficient. It works your upper and lower body at the same time, huge cardio/fat burner and builds muscle like crazy. I'm glad I'm in on the secret too.
Ever since the earliest recorded references to rowing, the sporting element has been present. An Egyptian funerary inscription of 1430 BC records that the warrior Amenhotep (Amenophis) II was also renowned for his feats of oarsmanship. In the Aeneid, Virgil mentions rowing forming part of the funeral games arranged by Aeneas in honour of his father. In the 13th century, Venetian festivals called regata included boat races among others.
The WaterRower Oxbridge is hand crafted in solid Cherrywood. Like all woods, Cherrywood may vary in color from a red-brown to deep red. The wood will darken in color with exposure to light. For this reason all WaterRower Cherrywood components are kept in light free rooms to protect from shadowing. A new WaterRower Oxbridge will therefore appear quite light in color. The wood will however darken over time reaching a rich reddish hue. Each machine has been hand finished with three coats of Danish Oil giving a deep lustre an warmth to the wood. Wood has been chosen due to its marvellous engineering properties, primary amongst these is its ability to absorb sound and vibration enhancing the WaterRower's quietness and smoothness of use. Cherrywood, like all woods used in WaterRower construction, is a premium hardwood with incredible longevity and dimensional stability. For reasons of ecology, all our woods are harvested from replenishable forests.
The rowing machine itself is unlike any other on the market with its patented water filled flywheel. It is hard to exactly copy the action of a scull on the water, but the mechanics of the flywheel spinning in water comes in a close second on dry land. The fact that the water is 800 times denser than air means that there is no need for any extra resistance or dampening that you will find in normal air rowers. The faster you pull, the more resistance is generated giving it infinite variability. However, if you want to be able to practice rowing with a faster stroke, you will have to reduce the amount of water in the tank unlike an air rower where you just have to adjust the baffle.