Xorn said:I'll chime in on the character creation thing--it's really, really easy, plus almost every decision can be undone later (everything but class features, basically).
We found it very easy too, since 4E character creation is almost identical to 3.5E which we already know, except you pick powers instead of skills. The downside is that it's also very easy to make a character that is dramatically weaker than it could be by not placing abilities well.