1 SG$ spend = 1 krisflyer mile is a good deal although that is almost matched by the old krisflyer gold card once the 50% bonus promotion is added. The old card is also free perpetually so long as you maintain your PPS status.

I really like the 25,000 mile welcome gift with the new platinum card and the additional 5000 mile first use activation gift. Also beneficial is the double miles for on-line bookings, though again this was offered on the old card (based on purchase value of tickets).

Welcome to FT SQ-1B. I am very surprised that Amex didn't request updated income information? Are they offering you the same credit limit as previously?