I'm enjoying the heck out of the Polaroid SX-70. The aesthetic of its rendering, and of the Impossible Project films, is very different from most other cameras. I want to do a whole set of projects with it.
I've also managed to acquire a Polaroid 350 pack camera. Soon as I adapt a modern battery to it, I'll see what it does with some Fuji 3000 pack film.
Beside my (now not working) SX70 I have a 340 (which I assume very similar to the 350). It's an excellent camera and the B&W film from Fuji gives very good results. It's a pity that there is not a B&W film in the range of 100/400 iso, probably I'm desiring too much!
The main problem for me is that the 3000B film pack are very difficult (almost impossible) to buy in Italy. Therefore it is easier to purchase from B&H (and even cheaper if I buy at least 10 of them!).
Remember: today is the Day ! from Ruth Bernhard recipe for a long and happy life