Getting right to the point:
1. The new background is dark, hard to see the track's loop end unless its clicked on. Please add an adjustable contrast/brightness. Constantly find myself squinting at the screen.
2. Adding a VST instrument is still the old way, please make it easier where an instrument is easily added, used, and then bounced to an audio track without having to export, as for now, its multiple steps to get to it, getting into Synth's properties is a pain, you have to get into the mixer and even their, its not just the synth, it automatically adds an additional Midi track.
3. Bug: if the clip properties window is docked and its expanded, there is a blue tint that covers the properties window. Only way to avoid that is to detach the window.
4. If Ctl+M is used to quick render a region, it saves to a folder of your choice, but when same is done again to another region, acid keeps reverting to "media saves" folder instead of the last used folder. Thats a huge pain!
5. Piano Roll, unless used "inline midi", the midi track will not play along with the global Play when editing Midi.
6. When zoomed in extremely close, the entire GUI becomes slow and choppy. I have seen others have complained about this in version 7, unbelievably it still exists in version 8.
These are some of the few, please address these. I am making a complete switch from FL Studio & Logic Pro for good. Acid Pro 8 is almost a perfect DAW once again.