I used the official before switching to infinity. I didn't mind the official app that much in the beginning. I hated the ads disgusted as posts and how the just got more and more post like as time went on. But I did like the app a lot better then the web site and I never really used Reddit on Mt computer.
Then I switched to Infinity, Loved it and could really see how bad the official app really was. So I just use infinity for some time.
Then I got tiered of opening reddit links from the web when searching for stuff, as it took me to the web site and the constant nagging about downloading the app, and making browsing on the website close to impossible. So I downloaded the official app again and use it to open posts from the web.
So I had the official one and Infinity together for a few days, it wasn't fun to use the official app but it was a lot more of a pain to use the website.
Then I found out you could make infinity open reddit links, and I never used the official app again.