World of Warcraft players, come in!

If you aim for high end raiding, such as top5 guilds do then shaman is the worst healer class currently in game. There is a huge deal of issues with the spec if you need to min/max.

1. Shaman healing is greatly dependent on raids positioning, both main raid healing abilities; healing rain and chain heal can be next to worthless if raid is spread or fight needs constant movement.

2. Lack of raid saving cool downs is a huge deal when raiding on new content with gear from previous tier. Disc priests and resto druids give way better cool downs to deal with incoming dmg then spirit link totem.

3. Even while shamans are able to put up a decent tank healing. While running as few healers as possible makes paladins with beacon better choice.

4. Mana tide is more needed by the shamans them self then other healers, so you don't really need tide unless you bring shaman. (See what I did there?)

5. Fairly low survivability; only real cool down we have is glyphed stone claw totem

These are just the most obvious issues with the spec currently there is. Also there is few other things but those aren't so major.

But if you ain't aiming for cutting edge progress you should be able to perform good as other healers, as long as you stay on top of your game

thats for heroic rag, I can understand that for 25man, since everyone is spread out, shaman won't perform that good, but for a 10man, theres not such a big difference

EDIT: resto druid are gods against pally in arenas, rej, cat form, run, rej, cat form, run, cyclone, roots, rej, cat form, run, .....