Any of You Currently Living in Pittsburgh?

For those who can answer:

So, it's very affordable for a city. Is downtown walkable? That is, is it structured such that getting around on foot is reasonable? Is there green space downtown? How is the arts community?

Is it an interesting city? Nothing will compare to New Orleans in that regard, but some cities are just more interesting than others. They celebrate diversity and encourage it. Is Pittsburgh like that?

What city would you compare it to? For example, if it's like Dallas--overly corporate and dull--I'd like to know.

I'm less concerned with the food scene because I can cook really well.

Thanks!