Comet is one of my least-favorite vegan-friendly places in Milwaukee because their service and food availability is so inconsistent. I visited last week and the wait was about 30 minutes (likely due to holiday travelers) but the service was very friendly. My non-veg sister joined me and loved her vegan Reuben, which made me quite happy. I tried the vegan seitan Philly, which was good, but the Riverwest Co-op's is way better.
The previous 3 times I have been there, they were out of the vegan deep fried ribs, which is my all-time favorite. One time, because they were out of the ribs, and also out of a few other vegan items, my group of friends and I all had to get the vegan gyros, which they totally skimped on, likely because they were low on seitan.
Last time, I thought I'd call ahead and be safe. The guy answering the phone rudely said they had the vegan ribs. I asked again, explaining that I had come in a few other times in the past, only to find out they were out. Again, he said they had them. Guess what. I got there and they didn't have the ribs. Not cool, Comet!
They did have the vegan ribs this last time I went, and they were very good, but probably better split as an appetizer, versus as a meal since it's so greasy. Some other quick opinions about their items: the Reuben is very good, the vegan "pulled pork" sandwich is really just cold cuts so it's not spectacular, and their homemade vegan cheese sauce is decent, but nothing to brag about (tastes like a basic nutritional yeast/margarine combination).