Surprisingly as a healer, damage output isn't all that terrible. Even for healing output. Downtime is almost non-existant, kinda imba due to the fact that u can self heal time to time, just gets annoying with mobs knockdown occasionally.

Penalty is not like WoW where a healer is strictly a healer where they do measly dps. Here u still can queue up as a healer and do off dps if the group avoid damages.