I did it at autoaid, somehow i feel more comfortable there. They got ready stock.
Autosaver very 'franchised', if you call different outlets to enquire you may get different price quote for certain items. I ever did one servicing with them (defu lane main branch) and it was done by PRC... I got A1 in 'O' lvl chinese but somehow i still got problem communicating with them, kept giving my blank look when i asked them things...
Just my experience.