I would love to play an archer, but I have yet to find a cRPG that makes long-range combat sufficiently "meaty".
What do I mean?
Impact of missiles should mean more than HP damage. I'm thinking as a minimum bracing animations, the regaining of balance by taking a step back.
After a couple of hits, the target should look like a pincushion. I dislike vanishing arrows!
I also dislike moderate damage dealing, rapid firing archers. That's boring. Arrows should be lethal to unarmored targets, but next to useless against plate armor and shields (that's what crossbows are for). At the same time, archers are dead meat in melee combat.
To sum up, having an archer in the party should not feel like a permanent AoE DoT spell.