New box including breakers may need to be brought to current code
My new box is all GFCIs and Arc Faults. The only issue I had was the new fridge circuit was tripping the GFCI, but the electrician came back and swapped that out for a regular breaker and it has been good. The fridge itself is a pain, ices over the fan for the icemaker if we use it, so it has been disabled from the front panel, but the breaker has been fine since.
Overall very happy since I got a subpanel in the garage out of the deal.