This place is just awesome. When you sit down you are presented with a huge spread of Korean pallet cleansers/appetizers. The iconic dish of this place is the soondooboo which is a boiling cauldron of tofu, broth, veggies and either meat or seafood. The coolest part is that it comes to your table boiling hot and they give you a whole egg to crack into it. Its pretty fun. Next to the awesomeness of the food the price is a big selling point. It's very affordable! The soondooboo runs around $9 and combined with the free appetizers this is enough to fill up most people. The kimchi/scallion/pork pancakes are also freakin' awesome and the portion is huge for the price.
Check out the good video review on this site to see it in action: http://www.chow.com/videos/show/ny-chow-report-food-news/115101/ny-chow-report-seafood-soondooboo-at-natural-tofu-restaurant