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Ordered, received, set up, filled... the device is exactly as I imagined it. The water resistance provides a continuously variable workout for the muscles, which is pleasant for tendons and joints... I'm more than satisfied. I lubricated the stopper with Vaseline; perhaps that will make it last longer, but you can actually replace it with any stopper you like. I hope it stays leak-proof and lasts a long time. Price-performance ratio... excellent!
I bought this rowing machine a little over a week ago and have been using it almost every day and am very happy with it. The frame is very robustly made and the other parts feels like good quality, the plastic parts are not brittle either. A very satisfying product and easy to assemble. I would suggest putting a mat under the rowing machine. It tends to wander a tiny bit after you’ve used it. It’s a good form of exercise as you train 80-85% of the muscles in your body. If you don’t know if rowing is for you, then this machine is very affordable compared to the good quality you get. You get good resistance in the pull/catch phase as it works using water. And the water sploshing around is for me a soothing sound.