Yup, I have spent 15-20 hours in rekordbox in the last 4 days and can confirm every single one of your issues, except haven't noticed the shift-button crashes.
I think the pioneer team is busy with turkeys for the next few days, but hope that these things get addressed ASAP before adding things like DVS, which will add even more bugs.
Now that pioneer is in the software game, I hope they have a serious team of programmers, UI specialists, beta testers, etc since they're competeing with companies who SOLE job is to make software (cough Serato).