well its a whole new system to learn but costs look a little more in line but until do a comparative pricing I cant tell for sure
one thing that is really stupid, their decision to make times really short so not to take away from the fast pace life of an adventure WTF?
With these rules you could conceivable build a keep as fast as our wooden fort, and they assume you will use magic where cost effective,, I guess in V3 magic is even more prolific????
So IMHO its still out of whack and would need mods before being acceptable.
the ability to cost in magic defenses and effects is good, but you can get a hell of a lot of men and stone walls for some of the magical add ons.