Went to try Awon today with regards to numerous recommendations
by the people here as a better alternative to Seoul Garden's Korean
BBQ + Steamboat.
MY VERDICT
General:
Basically uses a gas operated heater. Those small bottled gas one,
not the big ones used in hawker centre. The pot resembles a
steamboat pot, just that there is an "open space" on the top of the
pot which you use to BBQ your meat.
The space for the soup and the space for the BBQ-ing of the meat is
too small for my liking. You cannot even immerse your spoon fully
into the soup to scoop the soup. The BBQ space is also very small
and in the end the meat slips into the soup and it becomes
steamboat instead of BBQ 
Food:
Two tastes: SWEET or SALTY. Yes that is about it. The meat, no
matter beef, pork or chicken, is sweet. The soup is basically sweet
with just a little dose of spiciness. Mostly what you cook inside
the pot is sweet. The side dishes that accompany the buffet like
hot dog, tofu (tau kua), ikan billis, kimchi are very salty, but
they do taste good when go with rice.
Service:
Only 1 waitress on the floor, but sometimes the kitchen helper
comes out to help. Very positive attitude by the waitress, always
smiling, never compromising. Bagus.
Ambience:
Very quiet and peaceful, most probably because of weekday. You
don't really feel very korean there, but it is still not bad
lah.
Pricing:
$20.80+++ a la carte buffet (per person)
Choose Free flow hot tea or ice water
Limited spread of chicken, pork, beef, mixed vegetables like
cabbage, onions, mushrooms and carrots. Free flow of soup.
Free flow of rice, kimchi, ikan billis.
Comes with one serving of hotdog, tofu (tau kuar), some kind of
smoked fish.
There should be a 30% off the total bill when paying with DBS
cards. (not sure, dun trust me 100% on this)
CONCLUSION:
3.5 out of 5 stars
Better than Seoul Garden? Maybe just by a bit.
