In my book, Russet or Idaho potatoes should be baked or fried (or even nuked).
Boiling/steaming is for red/white potatoes, which are waxier and don't fall apart when done in water.
I have all sorts of pressure cookers but more often than not I'll cook red/white potatoes on the stove top. Takes five minutes to boil, and another 15 to cook. 20 min tops. The pressure cookers can take that long, or longer, to get to pressure, cook the potatoes, and then do a natural release. Plus on the stovetop I can poke them with a fork to determine if they are done.
I use a pressure cooker for stuff like brown rice, artichokes, etc. Stuff that takes more than 40 minutes on the stovetop. Even then, each time it's a bit of a science experiment.