It's playing nicely! I'm glad I did the update and factory reset first before putting much time into the unit. Had I spent a lot of time building tones and setlists just to lose them all, I would have been somewhat annoyed.
Now I've spent several hours this morning building tones, downloading and modifying tones, switching between tones, etc. The Firehawk is keeping up nicely and hasn't shown any glitches or crashes.
My current setup is the Firehawk FX, iPad Retina (older iPad on iOS 10.1), Fender Prodigy, into a small Peavey Studio Chorus 70. I'm getting prepped for a Christmas concert this Friday, so there's a lot of switching between smooth jazz, rockabilly, country, modern worship with ambient pads, and even some southern Gospel. The Firehawk is making it pretty easy to find and modify the tones to do it all. The Particle Reverb combined with a E-Bow is quite fun. :)
I'll be putting it through a few more hours of work, plus two shows this weekend. I'll report back on Monday as to how well the Firehawk performed or didn't.