What bothers me the most are instruments that have a somehow "floating" timing. This is very annoying for real world use when you are creating samples, stems or just doing audio edits.
Here are two high-priced virtual instruments that are not even able to bounce a simple 4 on the floor beat (just four notes of the same sample/sound/tone on every beat) - without completely destroying the timing. Since it is not coherent in itself, later audio processing is miserable. If the shifted timing is at least uniform, as with Avenger or some UVI instruments (2-3ms) for example, this can simply be corrected by a manual latency compensation (e.g. track delay) - if you are keen on tight timing. But the incoherent timing puts me to the test every time the developers dismiss me as picky.


