I did ketamine for the first time last weekend. I railed a 100mg dose to see what would happen, and I would say I didn't get my money's worth.
It took the substance a few minutes to start working, but once it did, everything became increasingly fragmented. Movement became difficult, thoughts came and went, and the whole room became a sort of an abstraction of itself with constantly shifting proportions. Along with the visual distortions, my eyes also became unfocused, and it was very difficult to hold them still. The feeling of dissociation from my physical self was strong, uncomfortably so, and I can't say I liked the feeling because it felt too much like I was trying to escape from being myself, which is decidedly something I do not do drugs for. I was also practically immobilized all the way until the comedown, simply because my body felt too alien for me to move in any coherent manner, and I was afraid that an attempt to stand up would probably just land me on the floor, possibly hurting myself in the process.
The beginning of the trip was actually quite funny, until the dissociation overpowered the trippy feeling. After this the whole thing dissolved into a comedown which was probably the least positive drug experience I have ever had. It was like a glorified hangover where your coordination is completely out of order and everything feels quite depressing.
All in all, it was kind of like being drunk on psychedelics. I have another dose of 100mg in store, but I think I'm going to save that for until I get some more cannabis, because I am willing to give the stuff another chance, but I seriously do not want to feel so bonked on the comedown, which is why a loaded bong is an essential parachute.