I ordered the SereneLife rowing machine a couple weeks ago and have been using it prior to submitting a review. As an experienced rower in college, and here I am 20+ years later, I still row on a weekly basis on water in a boat. I purchased this erg/rowing machine to help stay conditioned for outdoor rowing. I vowed that I would never erg again because I vividly recall the numerous workouts of the erg machine and the fatigue your muscles can feel because rowing machines really pushes you to anaerobic threshold=pain! However, the Serene Life rowing machine is AMAZING for many reasons. It is very well made; I am impressed with the quality of materials used. It’s fairly simple to assemble; I understood the instructions & had no problem assembling it with no help, and I’m a “girl”! It is very smooth and the seat and handle are comfortable. I LOVE that it has a stand to put your tablet/phone. It’s easy to store; I keep mine tilted upright when not in use. It’s pretty easy to roll and move around (I like to roll mine outside for an outdoor workout). It has numerous workout levels, or you can select manual; and the resistance levels are great. You will get an excellent workout. And the price is unbelievable! I almost invested over $2000 in a competitor’s model and I cancelled that order just in time after I did a little more research and found this SereneLife machine and purchased it from Amazon for ¼ of the price I almost paid! So for anyone that is hesitant to purchase this, you will not be disappointed!