Considering a MBP with Retina display

I've never owned an Apple computer. I'm an Android user and use Ubuntu on my laptop. This is the first time I'm considering buying an Apple computer. I use Linux extensively, so figured that the transition to a Mac will be pain free.

Also, I'm tied into the Google ecosystem (apps, data etc.) I want to keep using Google services, instead of the iCloud if possible.

How easy would it be to own a Mac considering the facts above? Any issues I should be aware of?