today a th10 attacked me with 17 giants behind them 4 max healers and rest barbs arch and goblins and bk aq both lvl15 used 5 spells 1 lightening 2 heal 2 rage
he could get %39 of my base and i offer 200k both and 2.5k de he could take 40k gold 100k elixir no de
i mean healers are very usefull yes
i m a maxed th9 full lavas aq upgrading bk lvl22 cc full with arch mins




Also could have barracks train up to 4 healers while army camps are already full and you're away from the game. When you come back you can raid once and immediately have 4 healers ready for another attack.
that burned me up a few times