I have been to Heidi's 4 times now and tried 3 different sandwiches (each one I've only tried once). All of them were made on very fresh bread that is made on-site, not trucked in. Their service has always been very good and very friendly.
On my first visit, which I think was in early April (about a month or so after they opened), I tried the pastrami sandwich. The sandwich was fresh, but the meat seemed a little bland. It just needed a little bit of pepper or something. But overall, the sandwich wasn't too bad. I'll give that one another try.
On my second visit, I only had dessert. I got an Ecolar (spelling???), which had a creme filling and choclate frosting. This one's a little hard for me to explain, since it has been over a month since this visit and I've only had the Ecolar once. To me, it tasted kinda similar to one of those creme-filled donuts you get at a donut shop, but the bread wasn't quite as soft. I also had a piece of cherry pie, which was also pretty good.
The third time I went, I had a Chicken Parmesan sandwich, which is one of their hot sandwiches. It had a little bit of marinara sauce. The marinara was cold, so I asked them to heat it up a little. Without problem, they took the sandwich and heated it for me. This sandwich was very good and fresh, possibly my favorite one out of the 3 that I've tried.
On my 4th visit last Sunday, I decided to try their meatball sandwich (another hot sandwich), since I love meatball sandwiches. This one was fresh, hot, and tasty, but had very little marinara. I like mine with a good bit of marinara sauce, but not so much that it drips everywhere, though! This time I also added a bag of California "Earthquake" potato chips for $0.69 extra, which is what they charge for their other chips, too. I want to note this because the Earthquake chips come in a bag that is at least 3 or 4 times the size of their Lays and Sunchips counterparts. These chips have a very unique and salty flavor to say the least. I liked them. These chips are available at other places, too, but this was the first time I've tried them.
I will definitely be coming back. I also recommend this place to anyone who wants a good, fresh sandwich.