Anyone take advantage of the overlooks just to take in the sights?

Yep. How many of them are there? I only remember two or three going through the campaign.

I love these spots but I only found like 3 during the whole campaign.

I really like these additions but I get quite bad stuttering in these scenes, also present during in-engine cutscenes but not a problem when playing the game

Shame there aren't very many. Honestly I don't know how Blizz didn't realize they need to move the camera around more. How can they justify selling $15 armor when it's so hard to see your character in any detail outside of the menu?

You ask me, they should replace the Diablo Door loading screen with the the social menu. Not like, literally the social menu, but specifically where you see everyone in your party standing together, all close and nice and detailed.

I only recall finding a few through the campaign, wish I had found more as they are really cool. Just like the Vistas Guild Wars 2 added in to their game, a nice little break from killing shit, although, they added some form of completion award into finding them which I don't believe Diablo does. Perhaps if they weaved them in to the overall Renown system people would look for them more?