I installed this and tried the beta. Never played UO before.
Seems like there is quite a bit of learning curve (as you would expect for older games).
Even basics like attacking monsters aren't that straightforward. I took some time to figure out that you have to go in war -mode to be able to target enemies. The confusing part was that, at first, my guy counterattacked monsters in even peace -mode but at some point not anymore. Lesson learned: read some beginner guide first.
Also everything is so tiny on modern high resolution screens. For example small gold piles and daggers in inventory are like 2x1 mm in size. So you have to be very accurate with your mouse

Simply double-clicking to loot gold piles doesn't seem to work. You gotta first drag the pile, then click ok to take all X pieces and then you can put it to your backpack. Pretty bothersome.
@Savagebeard, you got any recommendations for how to setup the game nicely? Which launcher/assistant, Steam or Razer is better?
I saw screenshot of Enhanced Client with much clearer UI. Can it be be used with Outlands?