Hill Country is, and I say this with all my heart and kindly, just a fat assed restaurant. Everything (with the exception of the cheery waitresses) is big and loud: two warehouse sized stories holding huge communal style picnic tables, a seemingly 15 foot TV (blaring sports), a band upstairs shouting countrified 80's tunes (they were actually quite fun), drinks with vodka, tequila, and everything else (mine, the 8 layer dip, also had jalapenos and was rimmed with BBQ rub salt) and portions of meat like you have never seen.
I really did feel like I was back in Austin for an evening (I would have even more so if some of it were outside and the diners were more rockabilly than NYU), which was fun. But all this would mean nothing if the food's not great and I have to say, it's the best I've had in the city.
The jalapeno sausage and moist brisket were phenomenal! Sides also delivered with the cornbread and chipotle deviled eggs standing out to me (my friends all raved about the slaw too, though I am never a fan, so I'll have to take their word). The ordering process can seem confusing. You have a meal ticket that you bring to the meat counter where you tell butchers how big a portion you want. I recommend no more than one pork rib, while nice and meaty, they were the least impressive meat dish we had, lacking in flavorful flair, but better slathered in the sauce provided at the tables.
You will feel your indulgences soon after dining and find yourself longing for big bowls of salad for days, but it's worth it – particularly the sausage and brisket.