I had one in .35 Remington twenty-odd years ago. Put an old K4 on it, and was astounded by its accuracy. No feeding problems at all, nor is the single action bar a problem. (How many great pumps like the Ithaca Model 37 made do quite nicely with one action bar?)
Never could understand why the 30-30's would have feeding problems, since the 170 is based on the .410 shotgun receiver. (.410's a rimmed case, too, as I recall. I have a Stevens Model 77 .410 and IT works like a charm!)
I'd say if you can find a 170 at a decent price, give it a try. I too like the unusual firearm; hope you can come up with one.