Been using rollers for well over 30 years. Giant branded, but built well and have stood the test of time. Only on a second belt. I have had a Mag Trainer, Cyleops Fluid trainer, the old Minoura wind trainer, and currently have a Wahoo Core. Nothing provides entertainment like those old rollers, thus I ride the rollers more often than the Wahoo. There is no question my balance is better on the bike after riding rollers all winter. No question the workout is "different" on rollers verses the Wahoo or fluid trainer. I don't race, have zero interest in V02 max numbers or FTP or any other current fashion of fitness. Not into virtual rides or races. I just want something to do that doesn't bore me to tears while doing it.