John Blank wrote:
play with four characters. One or two is not enough
Do you mean playing solo or with a group? Sometimes getting a full compliment of players together can be difficult.
Do you find that the extra downtime when there's four heroes isn't a big problem? With two heroes, you go back and forth quite a bit before the end tile (or whatever) shows up, whereas with four heroes, each hero only gets 2-3 turns before the end-game triggers.