I am really liking mine, an upgrade from 22 years of CycleOps Fluid & Fluid2 trainers, due to DCRainmakers review and my success with CycleOps/Saris over the years.
from His Summary: On the flip-side, if you’re living in a TrainerRoad world (or any other ERG mode app), there’s no better trainer than this for nailing ERG workouts best I see at this point. Those trainers simply don’t perform as well as the H3 does in ERG mode.