My recent stern purchases have needed very little adjustment out of the box, boom button on dp needed adjusting, Maiden needed nothing, acdc nothing, sw nothing.
My AFMr needed the interlock switch adjusted.
DI needed the most, but all minor. Lockdown bar, pf hangers, backbox lock. I had no mechanical issues. Had to bend down trap door flap. Had to buy cliffy set for chipping on SIM card hole.
My hobbit needed nothing out of the box, but over time I did need to replace the ramp flaps as they were curling (free) and a drop target board failed a month out of warranty (charged $50).
Jjp gams are much more complex and Pfs have more on them so expect more adjustments to be needed. I like tinkering so none of the issues I’ve had bothered me, except the di backbox lock, which was very common and should never have been an issue.
All of the initial issues I’ve had for all games should have been caught at the factory.