3 nights in Seoul - Conrad, Millennium Hilton or Intercontinental Parnas?
Went to Seoul last month and stayed at both the IC COEX and Millenium Hilton. HH Diamond and PC nothing status ( now Ambassador Gold)
The IC was superior in every respect. Easy to get to the metro so location not an issue. Large well appointed rooms and nice Club lounge. Millenium Hilton has a beautiful lobby but disinterested staff ( advised that my "upgrade" was to have Exec Lounge Access). Lower floors are not refurbished, it is situated on a hilly street which is a short but very steep walk to the Metro with busy roads to cross. Exec Lounges (2 identical on floors one above the other ) are ok.
I much preferred the IC
YMMV