Just spent one night at Conrad and one night at Grand Hyatt.
Not impressed with Conrad. Got to hotel shortly after 8PM. Had to wait 7-10 minutes to be check-in. WiFi speed around 11Mbps. No complimentary mobile phone which other hotels such as W, Sheraton, and Grand Hyatt offers. A call to reception around 3PM next day to check on my room balance resulted in endless ringing as no one was picking up the phone.
Grand Hyatt WiFi is around 23Mpbs. I like the decor more (personal preference) and reception actually picks up the phone.
Bed is softer at Conrad.