for me it was quite smooth. but take this opportunity to tell
the mechanic any (even minute) problems you think you have. usually
the first 1K is quite important, and they will also pay more
attention to it.
i recommend the service centre at Ubi, its not so long queue, and
has spacious waiting area. waiting time abt 2-4 hrs. best is to
book early morning session like 0830. not 1100 cos in between is
their lunch and you will waste 1 hr.
