I've got one for testing.
It's been on my Veteran since mid June.
The pros are: that it is as accurate as the OEM Vet analog gauge (ie, shots start hitting low around 115-120 bar with the analog gauge and that's also what the Sekhmet shows when the gun comes off the reg, also, it shows more bar/shot when the guns power is cranked up so seems to be picking up on more fpe =more air usage/shot), that battery life is phenomenal (while it can be charged while on the gun, I charged it to 96% before installing, and it's at 79% right now-7 or so weeks later and still working off that initial 96% charge, fits the Vet like it was designed for it (can't tell it's aftermarket in any way).
Still testing various other aspects/functionality and I'll eventually post up a decent, overly wordy review/overall impression.