I had my first two 2c-d experiences this week (both doses administered oral). The first one was just a test with around 10mg the second dose around 40mg a day later.
To my surprise the 10mg dose was above a threshold dose. Slight intoxication and increased perception was noticable within 20 minutes of dosing. Dinner conversation was also much more fluent and touched a wide array of topics due to lightning fast associative thinking. A little more and I would have appeared a little erratic. I had a nice evening at +/++ which was quite unexpected.
The second one was what could be called a 'museum dose'. I had the opportunity of visiting the Topkapi palace in Istanbul where I attended a conference. I was coming up wandering through the mace of yards and chambers and peaked somewhere in the luxurious premises of the old harem. I was with two companions who were not aware of my intoxication, but wouldn't have had any misgivings about it had I told them. I fact they developed a very pleasant effortless 'contact high'. OEV's werent predominant and receded immediately while moving about, a pleasant bodyhigh and a nice headspace characterized the experience. There was no bodyload to speak of. Within 3,5 hours almost back at baseline. I'll write a trip report as soon as I have time.
2C-D so far presents itself as a very benign and interesting substance with a lot more potential at higher dosage levels. I think next time I'll try it at a dosage where I can loose myself in the experience. The duration is a little short, but there are other substances at hand for more extended trips.