Experimental software which does not sometimes work properly (no positive effect to EEG).
Software can change measurable brainwaves a bit but how it affects to brain performance is unknown. Software tries to change EEG-metrics that are related to concentration/intelligence/sleep but changing those metrics may not improve brain.
Requires fast CPU and running times even for small effects are long (hours). Typically, you need about 10+ models before some useful results. It means hours of stimulation/computation.
Hosaka v3 requires in theory 11 hours of good EEG measurements before optimized machine learning model might have enough data to be reliable.
You need to actively concentrate on the audiovisual stimuli for hours which is tiresome. You can also only use software audio-only and listen sounds while using computer (minimize your movements/eyeblinks which have effect to EEG).
Not for people with epilepsy. Flíckering lights and sounds.
Changes to EEG or EEG-metrics is sometimes about 1-3%. 5-10% change is (maybe)needed for measurable cognitive effects (thought faint signals are also important brain processes).
Command-line software is difficult to use but there is also graphical user interface version.