The staff here seem very few, but the restaurant is very small; so this is understandable. However, they do not seem to care much to talk to or help the customers; and due to the premises being so small, you can often find yourself cramped into a small spot with people you haven't met on the same table, making it sometimes a little uncomfortable if those people aren't very friendly.
However, the decor is brilliant; adding to the post it notes is fun, and it's genuinely enjoyable to be able to decorate the place you eat with a note about your time there or anything else. It makes for quite a nice thing to do as a group in this way, sharing the experience.
As well as this, the food is very cheap and delicious. Most people I know complain about Korean food being too spicy, but this is not the case here; with cheap large meals for a very low price, with any extras an extra £1, and you can choose whether to add the spicy additions or anything else you'd like. The bibimbap starts at £3.50, which is by far one of the cheapest meals outside street food I've ever seen in London; and the portion sizes are more than generous. The kimbap is also very fresh and well made, and although we ordered more than one plate we soon realised this was not necessary: one plate offers ten pieces, making it more than enough for two or more people to share.
I would definitely go back; it's definitely worth the cheap cost and it's a good thing to do with friends even if you're low on money.