Legistorm is helpful for information on Congressional Members and staffers, among other things. Legistorm has also been responsive to feature requests and implemented one of my suggestions, and I've generally had good experiences with customer support. Review collected by and hosted on G2.com.

There's a few more minor features I'd like to see implemented or a few things that can be a tad clunky, but generally it fits the needs of what I'm looking for. Review collected by and hosted on G2.com.