Cafe Sam is definitely one of my favorite restaurants in the area. As others have said, it is somewhat quirky (the mannequin they have seated at the bar is a bit unnerving the first time you notice it), but the food is consistently good, the portions are nicely sized, and the prices are excellent especially if you order the right stuff. The interior is decorated with lots of antiques and stained glass and the upstairs patio is really a fantastic retreat from the Oakland/Bloomfield area if you go on a night when the weather is good. They always have a ton of daily specials as well as drink specials (the $4 cosmo is certainly worth every penny of my grad student salary!). Every time I visit, there's always been a point in the meal when one of the servers brings around a sampler tray with an appetizer or a drink; they've offered samples of things varying from strawberry or peach daquiris, a pizza appetizer, cold berry soup, etc.
I HIGHLY recommend the baked almond-crusted brie appetizer; the cheese is delicious with the almonds and raspberry sauce and they arrange tons of fresh fruit on the plate for you to munch at as well. We never fail to order this when we stop by.