We've stayed at two hotels in Reno and this is definitely tops. It's HUGE, clean, and totally family friendly.
In Numbers: Try your luck at Hotwire, because it's a huge hotel. You can usually manage guessing if you take a look at the maps in Reno. It's not located with the others, so it's an easy spot.
For Kids: They have a kid's club, outdoor pool and huge enough rooms to swim in!
For Adults: The rooms are spacious, clean, and the food and nightlife are excellent. The main floor definitely still has the casino vibe (and smells of it), but it is a casino, after all!