I built a slow build RV6 without a pneumatic squeezer and a QB RV8 with a pneumatic squeezer. For me, there are three items that I wouldn't be without....the pneumatic squeezer, the scotchbrite wheel and a 90 degree drill.
You'd be surprised how often you can use the squeezer and the rivets come out much better than with a hand squeezer, at least for me. There are literally hundreds of rivets you can get to....here are a few.....firewall flange, all the rivets on the cowling hinges, all the edges on the empennage, (practically all of them on the elevators and rudder) the nut plates on the wheel pants, gear leg fairings and wing roots and on the wing tips if you put on screws and nutplates. Literally all of the rivets on the baffling can be squeezed....there are many more, especially on any small part you work on. You can get by with a couple of yokes....a 2 1/2 or 3 " regular and a 3" no hole yoke get almost everything. (Yokes make great Christmas or birthday presents, if you give the right hints.)
Oh, I almost forgot...they dimple, too!!!!!