OK, my test batch is done. Still needs some conditioning time, but it's carbed enough to crack a test bottle.
I had planned to make a 3 gallon small batch of 1.060-ish IPA, but a low mash efficiency and low boil off rate left me with 4.5 gallons of session IPA instead. Fermented from 1.048 to 1.008. While I was brewing, I examined the Pahto pellets a bit and got an aroma of pine and lemon/orange with some spice and perfume notes reminiscent of noble hops. It reminded me a lot of EKG, actually. I didn't get the 'earthy' quality the descriptions mention.
The pine note isn't present in the beer itself. The aroma and flavor are pretty neutral, but with a mild citrus/orange character. Here again, it reminded me of EKG. More of an orange marmalade quality rather than an American C hop quality. Again, I didn't get any earthiness.
All-in-all, Pahto isn't bad, but also isn't very interesting or unique.