Downstairs is very similar to what you'd find in the back alleys of Seoul. It's even got the stainless steel table tops on what look like cut-down oil barrels. There are still a lot of restaurants in Korea that use these barrel tables.
Their BBQ meat is definitely a worth of try item as they are juicy and tender. The service was rude though, no smile and asked for the water came in half an hour later. only came here when Madang was really full.

Charcoal BBQ meats is just delicious at Obaltan. Been coming here for the last year and the chilli pork belly, marinated beef ribs and prawns are my favorite. Try combination BBQ sets. Waiters are always nice and friendly. I have been to a couple other Korean BBQ restaurants in Lidcombe and Burwood and Obaltan is by far the best.