This might be the most ridiculous In-N-Out ever due to the massive neon sign along I-15. Having grown up in San Diego, I'm no stranger to In-N-Out. The burgers are great. Well worth the wait for something that's truly made fresh in a fast food atmosphere. I also love the shakes. Too bad they're only served in one size. Or maybe that's a good thing for my calorie count.
This particular location is always packed. I drive home around midnight every night and I've stopped through the drive-through and it's a solid 10 minute process or more. I'm not sure if it's a tourist thing being near the strip, but this one is slower than most. That's saying something since most In-N-Outs are always busy. I'd suggest the In-N-Out in the northwest part of town for faster service.
The only thing I am not impressed with are the fries. I hardly ever get fries here. It's a waste of time. And of course there's the famed secret menu. Look it up on the internets and you can find out how to get a grilled cheese and the like. Good times.