The mainterence ah, takes time for ppl to adjust rite? after
all, to deal wif another totally different kind of bus leh...
Ya, but it won't need to take very long. 
SBST and SMRT don't take very long to know how to
maintain the new low entry and low floor when buses are switched to
WAB few years back, and double deckers are much easier to maintain
as compared to a bendy bus with complicated electronics at the
turntable and the articulated joint.
