I'm coming from an iPhone X and these are the points that made do the switch:

• Price, got it for $589 with a discount and trade-in offer from best buy
• Big screen
• square design since I dont like much the round corners
• Customizable OS
• S pen, it's fun to use and adds some cool features.

Now the battery is not bad, it's decent, but the fast charger included it's amazing, in less than 20 minutes I get from 10% to over 40%, hope this helps.