Sorry you had a bad experience but I doubt it was from poor quality. I used to work in the oil field and Red Wing boots were the only ones I foundthat would hold up for any considerable time,against all the muck and chemicals I had to wade thru 24/7.
That was in the mid-late eighties and I've worn Red Wing Pecos boots ever since. The quality of material and workmanship has not failed me yet. When I've worn a pair out, I buy a new pair to break in before I throw the old ones out. I don't plan to change that routine anytime in the foreseeable future.
Red Wing won my loyalty thru the quality of their product.