yes -- it's much better. I did some limited testing and was using about 3.3% - 3.5% per hour with stock faces on the S3 and now with 3.0.8 am getting about 3.7% to 4.0% / hour with Facer. So overall would still like to see Facer closer to stock, but at least now it's very usable. (e.g. the extra 0.5% battery / hour over say 18 hours is about 9% total, which is easily within capacity for someone who charges daily).
That said, it's not clear what the extra 0.5% / hour really buys .. more faces, yes, but not clear whether facer is providing any more features over faces that are developed native. So, knowing those features or encouraging development using anything unique would help. But, Facer is now very usable so that's great. Note that I did test facer with two different faces, including a lower burn face and one that really tanked my battery previously (Faster..with the red hands ..).
One thing, the battery consumption rates above were for the watch as a whole..one thing I realized is that I should have measured only the watch face consumption for a true apples to apples comparison. I did my testing on days where other battery usage was about equal, however may not have been exact. If I test any further to isolate just teh watch face, I'll post back.
Thanks for the fix.