2C-I was taken twice. It's great for going on a hike or adventure. With a friend, we both took 20mg and walked 3 miles to the beach. Great textures and amazing ghosting effects. My friend was walking and his image (where he was a moment ago) was frozen behind frame after frame as he walked. Energy needs to be unloaded - in the form of a hike or bike ride, or something else physical. Not mentally deep at all, although I'd imagine it could be pretty analytical if you gave yourself some alone time with it. This chem will be used again in the future for more cool ass adventures to cool places.
2C-E was taken twice. First was around 13mg, and we went on an adventure around our campus in the middle of the night. Time dilation was huge. This chem definitely skews ordinary thoughts and can give things new meaning. Second time was around 15 mg and the difference was astounding. Visuals galore, but only for about an hour or so. Things were swirling and churning. This trip wasn't useful at all because I had to nervously babysit someone who was tripping for the very first time. Ended up taking mirtazapine to end the trip for both of us. This chem will be used again for sure. However, its not a chem to be taken for "fun." If I want to venture out and explore, I will use 2C-I. With 2C-E, you should probably stay inside the comfort of your own home. I hate doing this, and always prefer to be in the woods. 2C-E use will be a rare occasion when I have an absolutely correct set and setting - probably involving the woods or nature in some way - where I feel the most comfortable. There is considerable nausea on the come-up that usually dissipates within 20 minutes.
2C-T-2 was taken once - pretty deep and pretty emotional too, but not as visual (just cool glowing and an eerie tone to the night ambiance). The dose (took 18 or 20mg) needed to be higher. I would explore this more, as it was pretty interesting (mentally), but I'm a little weirded out by the MAOI effect of the 2C-T-x series. I experience enough anxiety with psychedelics as it is. Relatively long come up.
2C-C was taken once at 20mg. This was definitely not enough, but I could get a feel of the "flavor" of the trip. No visuals except for an ambient glow at nighttime, and the head space was calm, peaceful, and there was no body load or uncomfortable mental or physical stimulation at all. WAY unappreciated. Will try 30-35mg in the very near future. Very optimistic about this one. I'd imagine it would be good for a relaxing, warm night plopped down on a beach with a blanket, some gatorades and snacks, the stars above, the waves breaking, etc. I feel that this one would be the best for a trip in public.
Haven't tried:
2C-D: This one is absolutely on my to do list. Just have to get my hands on it.
2C-B and 2C-T-7: Won't try it due to the fact that you can only get it illegally from a street dealer and you don't really know how much, or what, you're getting. Not my cup of tea when dealing with RC psychedelics (or anything). It's a shame, because I'd really like to try it. .
2C-P: Won't try it because I'm turned of by its duration and potency, intensity, and dose-response curve.
All other 2C's that exist aren't really worth perusing IMO, due to their shittyness or rarity.
So basically, the only 2C's I'll be focused on from here on out will be 2C-C, 2C-I, and 2C-E. With these three, I feel that I can cover all of my tripping occasions. 2C-I for a long, energetic adventure; 2C-E for a profound, analytical, or deep trip; and 2C-C for a relaxing, "malleable" trip (as MGS said quite nicely). 2C-C, I feel, will be my staple 2C-x.