I've only ever used it one other time as a nexus-flip (150mg MD and 1.5 yellow batmans) at a rave and tbh it felt like it enhanced the already present effects of MDMA with a mildly more tripper vibe and some vision trails. Definitely a good experience!
Onto Saturday (another rave) when I tried 1.5 yellow batmans. This time with no MDMA. On its own it felt much more trippy, more accustom to LSD than MDMA. I didn't have euphoria per say, but I definitely had a heightened mood. Also the sheer want to dance on MDMA was not present. But when I got moving it was amazing and felt just like a nice roll.
Now for the more weird experience... I felt like I could almost "switch" between staring at the stage tripping balls and dancing my arse off. It was a really nice feeling as my knee was sore on Saturday so I could switch between dancing and feeling connected to my friends to staring at the stage like a mad man, having the greatest time in the world inside my own head.
To sum it up this is a great rave/party drug as long as your not totally expecting a MDMA like experience/replacement but instead enjoy it for what it is. The idea that 2cb is a mix between LSD/MD is, IMO, only a guideline to decide weather you would like to try it and you should go into taking 2cb with an open mind not trying comparing it to the two.