I'm sorry; my post above sounded sort of negative. I didn't mean for that to be the case, it was just a cautionary note.
Among things my brother & sister-in-law loved about the Korea program were:
1) great foster care; their son was VERY well attached
2) good amount of birth family info (if it's not an abandonment case)
3) option to escort -- even though they ended up traveling and have NO regrets
4) more predictable and well-established than many other international programs
Jet-lag, however, was dreadful. :P
They accepted a referral with mild, correctable special needs and their process was 6 months from start to finish (but their USCIS office was super-quick with the I600 and I600A approvals)!!! Other families with their agency in the regular referral program are waiting 12-18 months for referrals and then another 2-4 months to travel.
Their little boy is beautiful and they LOVED their time in Seoul! Best wishes.