You Want Storage Options
One thing a lot of buyers don't consider is storage. Running out of space and constantly deleting apps, videos, pictures and other things are never fun. So, you'll want this phone simply because you have storage options.
For one, it comes in 64 or 128GB storage configurations. 128GB is more than enough for almost everyone. Then, it takes a microSD slot so you can expand storage. Technically, you could get the 128GB model and a 400GB microSD card and have 500GB (half a TB) of space inside your phone. That's impressive.
If 4K video is something you love get the 128GB HTC U12+.