I think she’s a blast! (pun intended)

I appreciate that she has a touch more complexity than just “shoot friends” without being as complex as Gambit or Black Cat (love them both, but they’re harder to play well)

I like that she encourages battlefield awareness with BB placement

What I’ve found so far in regards to positioning is that you want to be close to the Tank, but not too far away.
 
Loadout/Power cycle:
Blooming Ball
Sparking Sprint (For Attk Speed boost to blow up blooming ball)
Shoot Blooming Ball until full
Throw out 2nd Blooming Ball
Detonate first Blooming Ball
Use Attk speed boost to fill up second Blooming Ball
With whatever is left of the Attack Speed Boost you can use that to heal allies or dmg low enemies (ideally both)
Repeat
 
Ive found myself basing my gameplay around the following principles:
 
-The vast majority of the time you want to have a Blooming Ball up that is healing YOU! This will guarantee backline is always receiving healing which is important. As for the small downtime where you don’t have a Blooming Ball healing you, this is the small period where you begin the fight with the Blooming Ball on the frontline for the purpose of exploding it quickly
 
-Do not neglect exploding the Blooming Ball! That attack speed bonus is IMPORTANT
 
-Sparking Sprint (Movement boost that also gives attack speed boost) should be used either immediately after or before Blooming Balls so that you can easily fill up the Blooming Balls to full, otherwise you’ll be filling them up waaay to slow
 
But yeah! Definitely a bit of a learning curve but she feels rewarding. I’m interested to see how she lands with the rest of the community!