I have been using their products for 3 years and it's been great.
CarLinkKit You need to check to make sure your car works as some Mazda's, Mercedes I have noticed have issues. I would check the Wireless CarPlay forums here on MacRumors. I am using in a 2015 Ford f150 and it has been great. I am on the version 2.0 adapter and now they are on the 5.0.