I don't know what you mean by "big", but I've loved the experience of my Nexus 7 (2012). Great for reading books, good for reading comic books, good for watching movies/TV by yourself. Not really any better for social media than a phone. Haven't tried any content creation on it other than a few memes, and sshing into an emacs session on a real computer.
I'll replace it this year because of hardware problems (does not recognize charger except when turned off). But it's run up to Android 5.1.1 with no trouble.
I'll replace it this year because of hardware problems (does not recognize charger except when turned off). But it's run up to Android 5.1.1 with no trouble.