The only time I tried K, it was dried out into powder, and the TQ effect was probably only an hour (or 3?), but it was really bizarre-unlike anything I'd ever felt. You are truly tranqulized-and if you're in the right state of mind, it's the most confusing, funniest shit that you'll ever experience.
It's not like the trailers that you get with acid(loved it back in the day), but you are just totally fucked & have an urge to just bust out laughing because you can't do anything else. Short lived(not a bad thing), but really intense.
The guy I got it from was pretty much a pro, and this was his preferred method-but he was doing so many things, he wasn't really there (I think he was FRIED on X...and I mean FRIED). Just a little hint to those of you who are tempted to do X more than once a week or so.