Las Vegas & Henderson currently has ten In-n-Out's. My wife and I have eaten at seven of them.....and we don't even live in Vegas! So, we eat at In-n-Out almost every time we go there. Every location has been great. This one (and the one on Blue Diamond) are not as crowded as other locations.
My favorite is the double-double "animal style", which means they put mustard on the beef while cooking, add grilled onions, extra sauce and add pickles. Pickles are not put on their burgers unless you ask for them, or order "animal style". When I'm really hungry I get a 3x3 'animal style', which is three patties and three slices of cheese. You can even get a 4x4 or 5x5 etc..,.
The quality is always great. I don't know why, but their burgers always TASTE better than any other fast food burger place I've been to.
Oh, and they also have fresh potatoes that they cut in front of you. The fries doesn't get any fresher than that!