I stopped in for lunch and it was busy-- about 15-20min wait from the time I walked in till I got my order, but let me tell you, it was worth the wait. I had the oyster sandwich, clam chowder, and calamari. The oysters were very tender and I only wished the sandwich had a few more on it, cuz it wasn't very filling. Good thing I had the soup & calamari.. The clam chowder was sinfully delicious, with a heavy cream base and tons of flavor. The calamari was okay, nothing to brag about, but the sandwich and chowder couldn't have been better.
The oyster House is split up into two different restaurants next-door to each other.. To the right side is a sitdown restaurant with a bar and the left side is a casual quick stop shop with a counter to order at (which is where I chose to go). The interior is a bit dark & outdated and it doesn't have much of a welcoming atmosphere, but the outdoor tables in Market Square are a great option, weather permitting.