Ikseondong is pretty small but worth to visit to walk around. At the corner of Ikseondong, there is Korean BBQ street where local people go after the work.
It is very local place, not many tourists usually yet however, it starts to be known as a hidden spot for foreigners.
There are quite many BBQ restaurants, most of them are serving pork and a little bit beef. In terms of price, almost same ranges, but slightly different sometimes, like 1 USD.
The most 2 famous ones are Mi Galmaegisal and Gwangjujip.
Gwangjujip serves more side dishes, and using the lid of Korean traditional pot to bake meats.
https://goo.gl/maps/n5ta3aYa2u3hWfTS6
Mi Galmaegisal serves only 2 Kimchi as side dish and uses water tank steel to cook the meats.
There are pros and cons these two BBQ restaurants so I recommend to visit both of them in order to find which one is good for you.
I like Gwangjujip more for side dishes and I like Mi Galmaegisal more for the meats.I wish they combine side dishes from Gwangjujip and meats from Mi Galmaegisal… But still meats are average taste compare to other fancy and nice Korean BBQ restaurants.