The 7 comes really frequent during rush hour, and frequently enough during the day. At night, less frequently. This station's clean enough, and in a convenient location for this neighborhood. Unusually, the direction of the trains, and, therefore,the station entrances,, are opposite of everywhere else, so watch out if you are unfamilar.
I take this train every day, and have to come to this station. It is in dire need of a cleanup. The tiles are filthy, the paint is peeling and chipped, the benches are dirty, the tracks are littered with garbage (but that's no surprise since most subway tracks are). New speakers have been installed, but are not yet operational. They just installed two or three subway time boards which are 99.9% accurate. This subway station is convenient for the neighborhood, but needs a major renovation.