At 43 I bought a ff emtb. used turbo for the first few rides and progressively used the assistance less and less. I now have eco mode set at 15% and average 6% battery use per hour and a mix of paved and unpaved trails with very little elevation change. I almost never use turbo, but switch between no assistance and eco. I use the emtb to train when i havent rode for weeks otherwise ill take the mtb. That said i ride alone and don't try to keep up with anyone else .however If someone is inclined to use turbo exclusively, they get a thumbs up, to each their own.