I have used different versions of Virtual P.C. for the mac for quite a number of years.
Ease of use? they are very easy to use, installation was child's play. You just installed the software and an emulator would pop up. Just like a windows boot screen, you just pick the option to start with cdrom. Then pop in which windows operating system you wished to use.
A few years ago I was using win 98se and now we are using X\P on a mac.
Why? Well my son loves playing dos based games.We got him a g4 powerbook as he is apple mad but would still like to play the dos games and use C++. This way he has the best of both worlds.
Is it any good. Well it does run X\P and he has assigned 512Mb ram to the emulator. But it is painfully slow, really slow. Probably about the speed of a cyrix 300 with 64Mb of ram running X\P, if that is possible.