There are so many mobile apps available now that I think the small usability details can make a bigger difference than having a huge list of features.

For me, a simple interface, quick loading, easy settings, and reliable updates are usually more important than a complicated design. I also like apps that don't use too much storage or make unnecessary background processes run all the time.

What features do you consider essential when trying a new mobile application? Do you focus more on speed, design, storage usage, or how regularly the app is updated?