RanSicK : You can see if its quads or tris easily, just look at how the surface is flowing, this has to be checked manually tho. its a question of discipline. You have to be carefull where you split the polys.
Look at the CPS option to turn on/off the wirefram on shaded button. and then you count the edges surrounding a face.. it should be easy to count to 3 - 5

in regards to UV mapping, then you would want to UV map the lowpoly / the base object and CPS should transfer the UVs automatically. If not then use the transfer UVs command.

As always UV mapping is a pain, that is whatever you use polys, subD, or CPS (CPS is polys but in subD style)

CPS is like modeling in Polys and applying a smooth proxy .. so its basicly the same thing with a few things automated.
Unfortunatly , the UV mapping part is not that automated, and you will always have to do that darn UV unwrapping yourself. So you just have to plan where and how you do the projections of the UVs ..

Rubberkidney: Yeah, but remember as you get older your ears will start to drop and ..