We had a long day driving and it was VERY nice to come here and enjoy a dinner together. The food was excellent. They have Gluten Free accommodations and were very good about changing gloves.
One note: they use the same oven and utensils, so if you have a big sensitivity be aware. It's so good though so it is entirely preference based.
It took us about 15-20 minutes to get through the ordering process and finally sit down. (We set aside time for this since it wasn't our first visit to a Mod Pizza, but one of our group members had never been before and was shocked since there were only 5 people in line.)
The atmosphere overall was nice, but the bathroom was disgusting. I had to clean it prior to my use. I spoke with the rest of my group and they had similar experiences in the other stall. (Single-toilets x2) I would say during a slightly less busy time I'm sure it would be fine, but we went during the 4-5pm rush.
I would say that in general my experience at Mod Pizza was very enjoyable and I would come here again, but during a not-so-busy time.