UV cured coatings can definitely be an excellent finish for cues, if done correctly.
As with anything, especially finish related, it takes time to work out the kinks and develop a process that works well.
Microwaves and the Ultra Violet light that cures UV coatings are the same thing. It's just energy at a particular wave length on the electromagnetic scale. If microwaves were at a different wave length, then it wouldn't cure the coatings.
Sure, there are systems out there that can cost tons of money, but they won't make a better or more cured finish. If you've got the right amount of light in the right wave length, then it's going to cure. Pretty damn quick too. There are even LED systems to cure UV finishes.
To me, it's all about the coating that you use, and how you apply it.
Some coatings are 100% solids, meaning that they don't have volatile solvents that have to gass off before, during or after the curing process.
Some coatings have solvents to help them be applied properly. It's best with these to let the cue rotate with the finish applied so the solvents can gass off before you cure it.
I know guys who mix different types of finish and are happy with it.
To me, it's all about how it buffs out. I recommend talking to the manufacturer of whatever UV finish you buy and follow their recommendations. It can be amazing what a difference just having the right buffing compound can make.
Royce