Two Cetme's have passed through my hands, both ran flawlessly, decent accuracy, kinda wish I had held onto one.
No they are not an AR, the ergonomics are different as is handling.
I keep going back and forth between the AR10 and G3 (Cetme) platform for a future build or purchase, and the G3 honestly wins most of the time.
Conversations with Whirlibird, (taken somewhat out of context) he said something that kinda opened my eyes about the AR modularity, he said modularity means nothing once you have the gun set up like you want it. You're not going to be changing hand guards every week, barrels every month, etc. He pointed to my .300BO and said you have been thinking about another upper for that, when another complete rifle is a lower and parts kit away, no need for modularity.
So yes I am considering another G3 or Cetme over other options.