I started a thread a few months ago when, like you, I was planning to go to VOF. I was there for two days in September and will probably go back for a day or two in February. You can see a couple of pix from September here
The park is especially nice in the late afternoon. It was really hot in September (you live there so you know) so I am looking forward to spending some time there during a cooler February day.
It is a big enough park with several nice trails/walks that you can easily spend several days there. The good news is that it is just over an hour away from Las Vegas. The rock formations are just delightful. The park roads will take you anywhere you need to go.