I'm not sure if I agree with the sentiment that Freddy's is better than In-N-Out. It is good and I really enjoy their custard sundaes but price wise and taste (regarding burgers) In-N-Out has won me over.
The burger can be a bit on the dry side so I add extra stuff to it. Staff is really friendly which is always a plus. Love that they serve Vienna beef hot dogs here.
One thing I definitely recommend is their custard sundaes. The Hawaiian delight is topped with shredded coconut, strawberries, pineapple, and nuts. The creaminess of the frozen custard by itself is worth trying.
So if you want to have a little more variety than just burgers give Freddy's a shot.