I particularly enjoy the ease of respeccing - particularly as I'm trying a new build - in your face stabby slash before you can blink, rather than kill everything instantly from outside by melting brains.
I have the DLC, but will try and finish up the 2.0 vanilla first.
I've started playing CP2077 since the expansion came out. I started a new game though, so not got to it yet.
Holy moly though, it's like a different game. Everything is so smooth now, and easier to understand.