With the pandemic taking away the fitness center and swimming pool that I used to use, I could really use some advice about buying a rowing machine. I'm really not into the Bluetooth, fancy electronic add-ons and workout routines/instructors--just want a rower that functions well where I can just row. Looked to me like the NordicTrack RW 200 (although I'm leary of the resistance setting which requires both an electronic and manual setting), Sunny RW 5515, and the Xterra ERG 220 are basic models that might fill my needs. Any and all advice greatly appreciated.