[mpdehaan2]

Hmm, this is always hard.

The interviewer is trying to recruit you and also filter you out, but usually will not honestly respond to questions about what they don't like, or will hold some of those against you.

Ergo, you really have to ask "what is it like to work here" (and also culture questions, etc) and leave open ended questions, and then learn to read between the lines. Asking multiple people the same question can also be good.

Attempting to gauge enthusiam is good.

I find places that really want to invest in new hires and make them feel part of the team are the best (i.e. people that want to take you out to lunch and help go over code with you), but those are in my experience also a bit too rare.

You also need to figure out if the folks are smart, not burned out too much, and whether there's a lot of politics -- but it's really hard to filter that out from an interview, just in the same way it's hard for people to tell how a candidate is really going to be too.