If you're borrowing a set of earmuffs from the store, definitely go for the black/red set - they seem to be about 50% more muffled than the grey set (found out much to the chagrin of my husband's poor earballs).
There seem to be two rooms available, Room A and Room B, each of which has roughly 10 stalls. I think Room A is for handguns only, and it seems to be the busier room of the two. We stayed in Room B during our visit, and while there were still a constantly rotating roster of people in it, there was almost always an empty lane or two.
People here are friendly and courteous. Almost everyone kindly used the shared broom to sweep up empty shells from behind the red line so as not to leave a mess for others.
Sheets aren't expensive (about $1 for 6 sheets), except for specialty prints, such as a "zombie" which was probably about $2-$4 - or you can also just bring your own.
Max range was 25m, if you push your sheet all the way to the back of the room.
Bathrooms are not nice and could definitely use a good scrub-down, but who's going to a gun range for the bathroom anyway? :)