I appreciate the cool vibe at Hillside Quickies, and the large selection of comfort foods, but I found the food to be underwhelming.
My friend and I were the only customers in the place and while the service was friendly, it took a long time for the food to arrive. My friend seemed to enjoy her chili cheese fries (~$4), but I thought my seitan sandwich (~$8) was mediocre, at best. The seitan wasn't tasty, the bread was oily, they put mayo on the sandwich even though I asked them not to, and they also added potato salad on the sandwich, which was weird and didn't improve the taste.
I might give this place (or one of it's other locations) another chance if I'm ever back in Seattle, but I was not impressed my first time around.