Only once, many years ago, attempting home brewing, but using Syrian Rue as an MAOI (back in the days I kinda thought Rue/caapi were one in the same..WELL THEY AIN'T!!!)
I was sedated by all the Rue, but woke up in an interesting trance with a few spirally visuals...I ate some olives and a banana, having heard that eating sometimes brings it on, and...WHAZAM!!!
The 'experience' only lasted 5 minutues! But it was incredibly deep, beautiful, earthy, amazing visions and amazingly blissful...one my top experiences ever, despite how short lasting it was...if I had to compare it to anything I've experienced other wise, it would be some crazy hybrid between 5-Meo-DMT, changa and a heroic dose of mushrooms...was incredible!
Haven't got round to drinking Chali with caapi, but its on my 'to do soon' list. I will be very interested to hear about how your experience goes...