I haven't done it for a full run yet - 6 weeks into veg and will flip in one or two depending on growth - but I'm running flower LEDs with CFL veg side lighting and I'm quite, quite, happy with the veg. The growth is green lush and the internodal space is quite small. Now if you want someone who has run only LEDs for the full run...that will never be me as I always sidelight.