I will have to say that the hype is a bit overrated. It's a good burger, but not the greatest burger. I would take it over most other fast food burgers like Mc D's or Jack'n box. I would have to say that I enjoy it about as much as a Carl's Jr Famous Star. I did not like the fries the first time I had them, but they have since grown on me.
I would have to say that one good thing about In 'n out burger is that you can order it any way you want and they always get it right. You really can tell the freshness of the food, without a doubt. The only bad thing is the wait. If you go when it's busy, you will definitely have to wait about 2 to 3 minutes longer than most other places but they make up for it in quality.
I would also like to say that the cooks at in 'n out are the fastest moving workers at any fast food chain I've seen. I sure hope they get paid well, because they appear work very hard.