Chevy Bolt here, which has a touch screen but it’s single touch so there is no pinch and spread to zoom the map. Our other vehicle has a spinning dial for its navigation and infotainment display which is a horrifying, time wasting, error prone and distracting UI. IMHO touch screen is less distracting as it’s more efficient. A button on the steering wheel summons Siri (take me home, take me to work, etc).
My Bolt’s screen displays 5 icons wide by 2 deep. I have used CarPlay in several rental cars where the display was 4 icons wide by 2 deep. This is ever so slightly annoying, but apart from that it’s fantastic to get into a rental car and have the exact same navigation and entertainment system that you are already used to and has all of your content.
One CarPlay annoyance is designers, Apple included, who think it’s ok to put a list on a touch screen when a grid of icons would be better would be more space-efficient and touch friendly. Especially as the scrolling of the list disables when the vehicle is in motion. Turns out that when you do want to play that one podcast that is off the bottom of the list, all the remaining traffic lights in your journey will turn green due to Murphy’s Law. Siri can help but there are some things she just won’t get for me, like Tim Ferriss - interpreted as Tim Ferris and then there’s no such person. Sigh.
I normally don’t experience having to wait for CarpLay to connect. However, USB cables differ - some are only good for charging and unreliable for data. Being left in the car in the hot sun can cause them to fail over time. I’d suggest if there are connection issues, use a new, high quality cable to connect.