Well rather than just constantly griping about FO4 for various reasons I thought I'd start a list of some of the little things we've found in game that pleasantly surprised us.
1) The sound of rain on the metal roofs in the old houses. First time I heard this was in Sanctuary and I had to stop and just listen for a while.
2) Raindrops on our Power Armor screen. Looks like the inside of my PC Monitor is actually getting wet.
3) The splash from tossing explosives in water. Really surprised me.
4) Just sitting back and watching other factions fight each other. Just gives the feeling that the world is alive even without your involvement.
5) Watching vertibirds crash. Seriously I do hope they add some more armor or something to these things in a patch, but it is fun watching them catch on fire and crash and burn.