After almost a week of unsuccessfully farming runes for the last one I needed to craft Tyrael's, I decided to go ahead and jump to Torment 3. As was my experience when moving from 1 to 2, it was a bit of a struggle with a few "what the fuck just insta-killed me" occurrences. It was worth it, as got the rune within a couple of hours, and was able to put together a workable Touch of Death build. It uses a lot more uniques than the QV variants, which works better for me, as I have more luck getting those than ancestral legendaries with the preferred affixes.
I'm sure something will take me down soon enough, but I don't think I have even taken any damage so far, and Pit levels that were challenging my QV are a breeze. I still have about 80 Paragon levels to go and some equipment upgrades to work on, but I can at least enjoy all that Torment 3 has to throw at me without having to constantly watch my health bubble, which is how I prefer to roll. I think I'm good armor and resistance wise for Torment 4, but will definitely need to up my damage.
I don't know if I will reach Pit L150 before the season ends, but that's not as important to me as enjoying the game, which I am. As I'm still relatively new to D4, I'd also like to reach 100% renown in all areas (have only managed Fractured Peaks so far), so I have plenty of diversions to keep the game entertaining. In the least, I should have a lot more crafting materials stockpiled before the next season, which will make things a lot easier.