Based on my two visits, I would have to say that the food is fantastic but the service is hit-or-miss.
The people who work here, while nice, seem to have short-term memory problems. Both times I was here, I asked for water and never received it. I had to go back up to the front and ask again. The second time I was here, I ordered the chilled soup of the day, and instead received the hot soup of the day. It was 110 degrees outside and I was really looking forward to cold soup. Lastly, they offered a free sample of some bread, which I was looking forward to trying, but they completely forgot about it.
I also thought it was weird that, when I ordered an ice-cream cone, they brought it out at the same time as the rest of my food, forcing me to eat my dessert first. It seems that if they don't ask you when you want your dessert, they should default to bringing it out after you're done with the rest of your food. Speaking of that, the ice-cream cone seemed a bit stale, but maybe that's how waffle cones are (I hadn't had one since I was a kid!). And there were chocolate chips on top, and I must agree with a previous reviewer that they were not of the best quality. They had a plastic-like texture, so I can see why someone else thought they lent a "waterproofy" feeling to the shake.
All in all, though, I like this place. I've had a soup and a couple of sandwiches, and they were fantastic. The bread they use is great. The date shake was delicious. The place is clean and the people are friendly. You can get a lot of food for $20 or less. I hope that the next time I'm traveling on Interstate 8 the employees can do a better job remembering the customers' orders -- or, at the very least, that someone can reprogram the cash register so that it can print out more specific orders (e.g. "COLD soup of the day," "water," "free sample - bread").