It's open. $18 per hour. You have to buy their ammo. You can become a member for $250/yr and bring your own ammo.
I went to Highsmith's Friday to check the place out. Decent store forming up. I spoke about different uses of the range and was quoted so many figures, I can't recall them all so I don't want to quote the other figures. The above figures are correct for those services. Can't remember anything about additional shooter charges, and I recall something about some sort of family membership.