I have the OmniRocker for a Tacx Neo Garmin Bike Plus and it looks the part.
Over the last 3 or so months I've realised it's got pros and cons.
My riding style originally, was very much on the pedals everytime a hill appeared but doing that technique on the Rockerplate soaks up the watts.
Also sprinting is tricky and haven't got the same numbers as a completely fixed bike.
On the positive side of feels much nicer. My goal this year was to complete some 200-300k events, so wanted a trainer with a bit more comfort and the rockerplate definitely helps.
Normal cycling in Zwift events and getting the miles in, the Rockerplate is perfect. Overall happy but depends what your priorities are.