I have the CE61, which is the electric version of the CW61. IT bakes very well and recovers quite well. However it requires lots of repairs. In the last few years I have replace a door, door hinges, door handles, relays (lots) and elements. The workmanship just doesn’t hold a candle to Bakers Pride or Marsal.
They will be much, much less productive than your Y-600’s. If you at the point where you are maxing out your Y-600 ovens, then the only other option in the deck oven area would be perhaps a Rotoflex or maybe a Fish.