I ran 33x12.5x15 Toyo MT's for many years on my TJ. I bought them because of Les Schwabbies warranty and free lifetime balancing. Glad I did because I was always having them rebalanced. More due to the cheapo steel wheels I mounted them on...also from Schwabs. Plus they look cool, IMO.
They were a pretty good tire off road. I had to run very low air pressures (4-5psi) in the snow, to get them to squat so I could have traction. I never popped a tire off a bead though.
Like mentioned, they are very heavy. Probably what makes them tough maybe.
I was surprised that my 35" Procomp tires and aluminum rims are much lighter than the 33" Toyos on steelies when I replaced them.
I would say they are an OK tire, but due to their weight, I don't think I would buy them new again. If it is a "smoking deal" as you describe I would. That is how I ended up with the Procomp Xtremes!