The highlight of Lunch Break (and frankly, the only reason I'd go) is the convenience to this business district for lunch. They have breakfast too, which I've been meaning to try, but so far I can only review lunch.
The sandwiches, side salad, and chili are all good. I haven't had anything that's changed my life yet, but no disappointments either. "Good" food. But for the price, I'd expect great. By the time you add a small drink and a side (potato salad, chips, cookie, etc) you're probably going to spend $10. At lunchtime, I go almost anywhere else and either spend half that, get twice the food, or get seriously superior food that I can sit and enjoy.
I'm not really sure why it tends to take them so long to get food out. I believe they make their sandwiches when they're ordered, which is good. And they tend to get very busy at noon for obvious reasons. But still! I went in just for a side salad one day, trying to save the other $6. I'd assume they have those pre-made in a cooler (if they don't... they should!) and it's not a complicated enough salad to warrant 10 minutes to assemble. I asked about the price of chips on their own, and it was over a dollar for a bag. If I got just the salad and hit up the vending machines at work for a drink and chips, I'd save about $3 more. And I thought the vending machines were overpriced.
The outside seating is nice during good weather, and the tables inside are cozy. I like the decor. The cashier (the only employee I've interacted with) is always friendly. Overall, I have no real problem with Lunch Break, I just think it's a little bit expensive and slow for what you get.