| Good luck with the Agro. I loved it for a bit (and still want to love its aggressive nature, that's why I've kept it despite it losing it's place on my board), but I found it to actually strip some low end from my tone, no matter what I tried. In addition, for me there seems to be a high end "sizzle" that is always present no matter how much presence is dialed into the pedal. Maybe you'll have more luck with it.
I was also left with the same feeling of "meh" about the Pork Loin. I read so much good, and could never find a great place for it for me. It seemed to lack any interesting tonal character, and was completely swept up in a mix (IME). It didn't seem to compliment my style, or the band's sound in any fascinating way.
What I have kept, however, through multiple versions of trying to find the "perfect OD", is my Zvex Distortron. Nothing sounds as good as it does to me. It gives me a little extra bottom end oomph, it's got a great grind when playing with a pick and some rounds, and a nice wooly tone with fingers. If you crap out on the Agro, I'd suggest looking into one of those. It was my first dirt pedal purchase, and all of my other purchases are compared to the Distortron.
And they all seem to fail for my tastes..... | 
