D C.
Yelp
I love Chumley's.
I've been going for about 5 years now, and any time I walk in I either see people I know or get to talk to new folks. Patrons are friendly, and often regulars. I've only rarely encountered unfriendly folks there; the few I have met have taken themselves elsewhere soon enough. It's a rather low key atmosphere, even on football weekends.
The crowd changes by time of evening, so if Jeopardy at 7 (the only TV program besides Penn State football for which the sound is on) isn't your speed, perhaps the 11p party which sometimes includes the drag community (when we can be bothered to dress up) might be. There's not really room to dance, but we manage.
The faux-windows on the walls help it feel less small, and I love the art hanging on the walls. For those who look closely, there are a few "Easter eggs" that speak to the name of the place and Central PA. Personally, I love it, but I have been told I lack taste.
The bartenders, Ellen and Brian, are great both in making new beverages and helping you select something you like even when you only sort of know what that is. They remember a) who you are, and b) what sorts of things you like.
It does get crowded & loud when they host special events, most recently drag karaoke, usually to benefit the AIDS Project or State College Food Bank.
Expect you will need to show ID at the door. Because of State College rules, the fact they are on a shared liquor license with 5 other Hotel State College bars, and PA LCB targeting of gay-oriented businesses, Chumley's keeps everything unquestionably above board. Trust me, it's nothing personal.