I played some more Brigitte, hard to get a good idea on PTR because team comp. can suck, I was Brigitte with 5 DPS one time, and SR range is huge can get silver to master in same match.
She's a lot of fun, and feels in a pretty good place.
She's mostly getting the same type of feedback Moira received, and it make sense because both were made with I think the same goal in mind. Shift the meta away from dive, dive has been way too popular for way too long. Pretty much on all maps, offense and defense. It's impact is reduced a bit with Moira now, but it's still pretty much the most popular team comp.
I think both Moira and Brigitte were designed to counter the dive meta without actually nerfing the heroes that make dive so good. They both are not ideal with to enable a dive team either.
Most complains seems to be about her Shield Bash, even though with a range of only 5 meters...it's use is fairly limited. It can easily be played around, no heroes really need to be within 5 meters to be efficient.
I think the rate at which her ultimate can charge will be nerfed though. In the right circumstances...where your primary attack hits 3, and heals your entire team, it will charge in maybe 20 seconds. It's really retarded.
All in all, I think a good addition.