Simply put, if you like other Bosstones stuff, you'll definitely like this album. Someday I suppose is a fun tune to start it off, and Think Again, Lights Out, and Police Beat, none of them very long, are harder rockin' songs.
Simmer Down, a cover of a Bob Marley tune, is more relaxed as its title implies. It's a nice change of pace for the usually very-intense Bosstones.
The last two songs, Drugs and Kittens and I'll Drink to That, were recorded live at a concert in Boston, on December 2, 1992. It has some banter with the crowd at the beginning and end, and if you wait a long time (almost 25 minutes) after it ends, a hidden track will start playing. The hidden track is a moderately-paced song about getting older - I see why it's bonus, since it doesn't really fit in with the other songs on this EP.
Overall, a great little EP - don't pay too much for it, and you will definitely not be disappointed.