I took my 0.25 mg during a spring break between quarters at university. I wanted to dip my toes, considering it was a new class of drug and it could last for so very long. I planned to spend the day deep cleaning the apartment, if the experience allowed.
I do recall feeling pretty spacey for some moments and feeling like concentration required more effort. I also had those paradoxical feelings of weakness amidst boundless energy common with other trippy things. For lack of a better description, it had a very distinct and rather "chemical" buzz. I felt like I could almost taste in in my mouth. Visually, everything took on a kind of blueish cast as if being illuminated from a hidden lamp. I was aware of more perspiration than usual.
I succeeded in my cleaning activities, washing the kitchen and appliances from top to bottom and vacuuming all the floors including under/behind furniture. Later that day, I was happy to be finished and was feeling sore but still had energy as though none of that had happened. Sleep was difficult and restless, and I still felt some effect in the morning. Even a few days later, I felt like it was still lingering in my body and affecting me subtly. I was a bit concerned by how long it felt like my body needed to clear it.
I haven't tried DOC since then, but I do hope to give it another shot some day. Next time I'll probably do 0.25 mg again and see if I can get a more pleasant effect from it in a better setting. Regardless, I anticipate that it will be quite stimulating, so I'll want to be able to spend much of my day being physically active if possible and then be able to recover afterwards.