I have the wireless dongle, but if you try to Pause/Play/Skip etc, there's a noticeable 1-2 second delay that was annoying enough for me to just plug it in now when I want to use CarPlay. It also takes ~30 seconds or so to actually connect to your phone after startup.
Wireless CarPlay also seems to use the battery pretty heavily... so for short trips its not too bad, but if you need to keep your phone charged on a longer you'll want to plug it in anyway. I have an after-market wireless charger in my center console, and it just wouldn't charge it fast enough to keep up with wireless CarPlay most of the time. (I've heard battery life is a common issue across the board with wireless CarPlay, even heard this from a new Tundra review!)