In two days of use, I like the iSelect Dumbbell a lot. It’s compact, and fast to change weights when working out. The dumbbells have a nice feel with the knurled handle, they don’t slide or rattle, or roll on the floor. The weight change is FAST, like zip-zip on under a second. I was able to set it up to my Wi-Fi using my Android phone. I am good using the manual setting, either the knob or Alexa. The advantage of the automatic change is it remembers your current settings for all the exercises for the next time. I’m using it with my own strength programs such as pushups and sit-ups, so I don’t necessarily need the iFit program.