Such a great environment at Hitchhiker! The only reason it doesn't get 5 stars is that I wish there was more seating and a bit more on the food menu (only because I selfishly want to be able to spend hours at a time there.) The beer selection has increased and improved since it opened and there really is something for everyone.
The inside is definitely tight, but the outdoor patio adds a decent amount of space with nice weather. We went last night and one of the most surprising things was how family friendly it is for being a brew house (something that Pittsburgh breweries have definitely embraced, which is so awesome being a new parent).
Again, the beer selection is great. I recently had the Trial by Fire which is a perfect summer Saison. My husband had the Conversion, which was a lighter American Blonde that we ended up taking a growler home of. I've also had the Shadow Walker and the Barbarian - both solid beers that are great to sip and enjoy after a long day.
All in all, a great place that we love to go to. Don't go with the intention of eating a meal, but as long as you're just looking for a good selection of beers, a fantastic environment and great service - this is your place!