Making UVW work faster is something that would help a great many users. One task that is always popping up (in my own work and when answering questions for others) is how to easily transfer UVS on one face onto another with minimal effort. For example, if you add a Box primitive and want it to have the same UV scale for bricks that is on another object. These kinds of tasks are common with hard-surface modeling.
UVW Map
The Acquire function fails to acquire from the picked face of an object--instead, it only picks the top UVW Map Modifier in the stack. So it means if your picked object does not have a UVW Map Modifier OR is using multiple UVW Maps (for different mapping parameters on different faces), you will run into problems: either you cannot get mapping OR you can get mapping but only from the top modifier settings.
Update the UVW Map Acquire function to work with ANY picked face of any object in the scene--not just those that have a UVW Map modifier. The Acquire function is so limited because it only works when you pick objects that have UVW Map.... but for collapsed geometry, unwrapped objects, standard primitives, etc... this just isn't an option.
Unwrap UVW
It would be nice if the Unwrap UVW has a method similar to Acquire where you could pick a face in the scene to force the selected UV island to rescale/offset to match the picked face. Just like with UVW Map functions, there should be options for Absolute or Relative results.