I'm at the hotel right now. Fantastic property so far. While I was not upgraded (as Gold) to a Club Floor they invited me for happy hour to the lounge

Pros:

- extremely friendly, knowledgeable and fluent in English staff, something you won't find at the W Walkerhill Seoul

- I checked in in the 38th floor lounge, what a nice treat

- brand new property with high quality finishings, spacious rooms and bathrooms, high quality bedding

- direct access to the mall (use the hotel elevator) - I had a great Korean kimchi dinner for $6, dozens of other restaurants

- subway is right downstairs

- 'happy hour' in the lounge had some good hot and cold food options but just glanced at it

- fantastic views from the high floors

- Internet is fast

- C+P rate is 4k + $60 which is really fair

- great looking spa/gym but haven't used it

Con:

- haven't found anything (yet)