I am thinking of giving Grand Hyatt Taipei a try instead of my usual stays at Regent and Kimpton Hotels. I have a couple of questions and would appreciate any inputs.

a) As a Hyatt Globalist, would it is possible to get an early check-in at around 1400hr and late checkout at 1500hr?
b) If I book the suite room, would they provide further upgrade to higher tier suite or I am better off just booking the deluxe room and upgrade to suite room?
c) The breakfast hours at the restaurant and club lounge

Thank you very much for any inputs. Greatly appreciate it.