Were the Ise-class hybrid conversions worth the cost?

Were Ise and Hyuga worth converting into hybrid battleship-carriers?

No. The ships gained too little recoverable aviation capacity, retained too little coherent battleship capability, and consumed effort better directed to purpose-built light fleet carriers.

The nominal 22-aircraft group operated from a slow platform that could not recover its dive bombers, and the catapults were removed by November 1944. The ships then served as transports and battleships, carried strategic materials home during Operation Kita, and ended as floating anti-aircraft batteries. Japanese carrier experience should have made the inadequate facilities obvious at the time, rather than only in hindsight. If the purpose was fleet air defence, the ships needed fighters. If it was decisive-battle strike, they could not launch enough aircraft to compensate for the sacrificed battleship capacity.