It’s not too bad, I just got this character to 120 this morning, slapped on some benthics and did a few randoms heroics before queueing into some BGs- about 365 ilvl. It’s fun playing support with the lusts, earthen wall, and skyfury totems. Plus the chain heals and healing surge crits are better than you’d think. If nothing else, you get to harass with purging and hexing.
If the other healers don’t know what they’re doing, I can still top healing most of the time, but a geared priest will definitely still outheal. You still kind of fall over if you get tunneled (165k hp right now).
Of course, I only heal in BGs. For DPS, your results may vary. Don’t pay too much attention to BG chat though, people will take any excuse to salt up, even if they are winning. I’m still probably going to get this character to about 400, but it’s still fun for the time being regardless.