I upgraded all of my breakers to AFCI+GFCI. Worked flawlessly so far (about 6 months in).
The only two times where my AFCI tripped were 1) my blow-dryer shorted out due to a worn out cable (WAI) and 2) the PSU on my PC started tripping the AFCI (sent back to the manufacturer and got a replacement). So in both cases, at least for me, the AFCIs caught real problems.
Not a single trip of the GFCI function so far including vacuum, fride, and various power tools (and it's great peace of mind to have this with kids in the house).