X#@#######
monster at X, scoundrel has bow at @. Scoundrel shoots, monster steps closer. Scoundrel Quick Steps away without getting hit, can shoot again.

I also find this happens quite a lot:

X1 X2
@ #

Scoundrel wields dagger, kills X1 this turn. X2 moves down into adjacent space, is still facing down. Scoundrel Quick Steps up to where X1 was, X2 has only moved the once. Scoundrel can now position herself for a backstab (x2 won't move or change facing since you're closing distance to him).

True, it doesn't pre-empt monsters during the turn in progress. Once you attack, and every monster attacks and moves, you should be able to move without having monsters move or attack.

There was some discussion as to whether this made more sense as an energy-costing, radial-using ability that forced you to move twice in a row, but we decided to try it this way first. Would that be less confusing?

'I hit and everyone else moves'. The problem with pausing a turn to allow your free move to go before the monsters' turns is that you couldn't be allowed to do anything but move for that next turn. If each attack triggered a free move, and you weren't forced to move, you'd be allowed to attack indefinitely without invoking a monster's turn. But, if we did force you to move EACH time you attacked, it would be a lot harder to control your character.

You should only need to / be able to put one point into the skill. I'll check that aspect of it out this morning.

tl;dr The way it works is: You attack, and all monsters take their turns as normal. Once the turn in which you attacked ends, you may make 1 move action without taking a turn (or just attack / use a skill, etc., which WILL take a turn, as normal).