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You may also consider Top Gun.

I believe that they have better ventilation and more training classes (including ladies).

http://www.topgunrange.com/

Yes this range exists.

It's Memorial Oaks Shooting Club and it is an indoor public range.

Here is the website: http://moschouston.com/Home.html

What part of town are you in? There are several ranges around Houston and they all offer something different depending on what you are looking for.