Yep. Every character class was practically the same with the same mechanics (at will "spells", per encounter "spells", per long rest "spells") and a massive am

Yep. Every character class was practically the same with the same mechanics (at will "spells", per encounter "spells", per long rest "spells") and a massive amount of repetition across abilities. As a DM, I was an over worked CPU; monsters were boring and scripted and every character class had liberal amounts of "force the monster to do x" actions that resulted in monsters having little to no agency. I ran a few adventures in 4.0 and put the books away forever.