I prefer the GelCaps, I usually take like 40 of them to trip...delsym always works too. Most of the stuff around here has guafenisen in it, and I'm too lazy to do the extraction but the gelcaps and delsym doesn't.
I prefer the GelCaps too, though it's usually 20 for me, which is a good albeit short-lived trip. That's the only thing I don't like about it: too short. But the 2-3 hours where it's at its peak is perfect. If only all of life could be lived that way.