I've stayed at both of the JW Marriott Hotels in Seoul.

I like both hotels. I think the biggest thing to consider when choosing between the two is which location is more convenient to where you need to be in Seoul.

The original one is on the South side of the river and the new one is in the East side of downtown across the street from the ancient East Gate (Dongdemun).

Both hotels are very comfortable and have excellent executive floor lounges.

Each hotel has good access to the subway.

The original JW is a very large hotel with extensive conference and events going on. It is also directly connected to a large mall with a huge department store and the Express Bus Terminal. The bus terminal is much better than a bus station in the US. There are quite a few restaurants in the mall and bus terminal. The restaurants vary from fast food to very expensive. Western and Korean food are available.

The new JW in Dongdemun is a smaller "boutique" hotel with about 170 rooms. The staff was fantastic and I will make this my "go to" hotel for future visits to Seoul. Most of my work is in the downtown area so location has always been the disadvantage to the original JW for my trips to Seoul. The executive floor also included breakfast in the restaurant on the second floor which was FANTASTIC!!!

Since the JW Dongdemun is a new hotel some of the taxi drivers are not familiar with it yet so be sure to get a card from the front desk with directions to the hotel in Hangul and English to improve your prospects to getting back successfully.

Each hotel may be easily reached from either airport by bus, taxi, subway, or hotel limo.