Soga is a little hard to find, you have to go up some massive stairs which seem a little intimidating. But once you get up there the staff is very welcoming and warm. We went there pretty late, about 40ish minutes before closing time and were unsure if we should stay and eat. They told us it would be no problem and would stay open a little later for us.
We had the shrimp and beef shabu shabu. If you haven't had shabu shabu before it's a pot of boiling broth (I added pictures if you want to see) and a plate of different ingredients that you can throw in to cook. The broth itself is very good and made of bonito fish, seaweed and other spices. It's even good to drink as a soup later on.
The shabu shabu came with a lot of vegetables and mushrooms. The vegetables looked and tasted great. They also had chili paste, chili oil and sesame paste to add. It was only about $16 and we shared it in between 2 people, but a third person could have gotten in on that. It was delicious and a good value.
We also had the gyoza which is what brought us there to begin with (dumpling craving). They satisfied more than enough.
On a final note...they must not be getting many white people since like I said they are kind of hidden away. They were extremely attentive of us, making sure we knew how to use chop sticks etc.