like them better than the CZ 82,32's because of the fact that they are a steel frame pistol.
So is the CZ-82 (steel-framed, that is.) The CZ-50/70 are big guns for the caliber. And while the CZ-82/83 are bigger, they're not a LOT bigger. The CZ-82 was never made in anything but 9x18, but the CZ-83 (almost the same gun) was offered in .32, .380 and 9x18 (9mm Mak.) Good luck trying to find an 83 in .32, however -- as they are very rare and tend to command an inappropriately high price.
For the money, for ease of use, and even sometime-concealed carry, I'd buy a Kel-Tec P-32. They are virtually trouble-free, come with a warranty, and you can find both parts and magazines. (The P-32 may be one of the most trouble-free of all the Kel-Tecs.)
I had a CZ-50, essentially the same gun without some of the minor refinements (and the better metallurgy) of the CZ-70, and found it to be OK, but considered it a novelty. (One of my first purchases years ago when I got my C&R FFL.) They're not particularly cheap to shoot, and finding ammo can be a problem.
While most parts are available, magazines can be a real problem with these guns (or any of the small .32s); if you have good ones the guns tend to be almost trouble-free. I think Wolff Springs has mag springs for the CZ-50, which was a hard thing to find in the past, and those springs should work with the CZ-70.
My CZ-50 easily outshot a friend's vintage PPK.