Hey Longecity,
I recently started a cerebrolysin poll to have some collective qualitative data on our experiences. My two 20-day regimens were extremely positive experiences with strong enhanced: clarity of thought, motivation, ability to make connections, SL/LT memory and brightening of old memories, mood, rather serene present-moment awareness; as well as a reduction in most negative effects of inebriation (cognitive, etc. from alcohol and marijuana), and an increase in the positive/euphoric aspects of substances such as the former and: caffeine, nicotine, MDMA, ALCAR, and NALT.
I've talked to several on here and on /r/nootropics where I originally posted this who also experienced very noticeable positive effects, and a few who noticed little to nothing. With a poll like this, hopefully we can compile some factors as to the effectiveness of cerebrolysin. The more people that fill it out the better sample of data we can have!