I wish I knew of a honest evaluation of CarPlay. Every time a CarPlay article appears whether here or another site I see a lot of people saying how bad it is.
But every time I think of trying CarPlay I see a thread where it is being trashed by users and I wonder if I would be exchanging one bad apple for another.
I will try to give you my opinion on CarPlay, and I will tell you the good and bad. I use an iPhone 6s Plus with iOS 9.3.5 and my wife uses an iPhone SE.
If I used three words to describe CP it would be
simple,
easy, and
limited.
My only current CP system is an aftermarket Pioneer App Radio 4 model that I was able to get for only $260 back in Dec 2015. This is used in a 2015 Mazda5 that my wife primarily drives.
A few months of my wife using CP, I asked her what she thought of it, and she said something like "it is okay, but it messes up a lot". I was surprised, so I started using her car more to find out what she meant. CP would sometimes not play music, randomly disconnect, and some other minor issues that could be easily corrected by unplugging and re-plugging the iPhone in. On a rare occasion, the issues could only be corrected by restarting the AppRadio unit, which would mean turning off the car and restarting it.
It still had little annoying bugs, like sometimes on the Pandora App, the "now playing" button disappears, and this is only corrected with re-plugging your phone in.
For operating CP, it is very simple and easy to use. It is designed with safety in mind, but the downside to this is that it is extremely limited.
For example, if the only apps that you use while driving are Apple Maps, Apple's Music App, and text via Siri, then you would probably enjoy CP.
If you like any other navigation app, such as Waze, then you are screwed. There are like 20 apps that are compatible with CP, and almost all of them are music and audio book apps. 20 sounds like a lot, but the only music app that I use that is CP compatible is Pandora. No 8 Track app, no Amazon Prime Music, and no AOL radio app.
I have not tried Apple Maps in a few months, but it was very limited when compared to other navigation apps out there, so it sucks to only have Apple Maps on CP.
About sending texts, if you have any problems sending texts with Siri now, those problems will not get any better with CP. You will be subject to the same downside, but some could potentially be worse.
Example, if you cell phone has crappy coverage were ever you are driving, expect a lot of outages for Siri. If Siri has issues understanding you while sitting in your office at work, expect this to be worse when you add road noise to the situation.
If you have a quiet car, rarely see spotty cell coverage, and Siri works great for you just on the iPhone, then you will probably enjoy using it for texts on CP.
So, like I said, If you like Apple Maps, Apple Music, and Siri for text, you will probably really like CP. If you don't like these things, CP will probably not improve your driving experience.
Overall CP is not as polished as other Apple products and services of the past, but that could be said about many other current things from today.