I cannot decide if it is this head unit or if it is Apple's CarPlay that is glitchy, but this head unit has both some things I love and some things I hate. The CarPlay interface is great, when it works properly. Sometimes it gets really laggy but I think that is a symptom of my phone, not the head unit as the Pioneer is basically just a display when using this feature. Switching from CarPlay to Pioneer's interface is generally pretty quick. One thing I really don't like but is common on most touch screen heads is the touch buttons for volume. Having to take my eyes off the road to adjust the volume is annoying and dangerous and I have actually resorted to installing retrofitted steering wheel controls from a Toyota Sienna.
All in all this unit sounds great, has all the features I need and a beautiful responsive screen. I just wish Apple would pull Carplay out of the "sideproject" closet.