for example like mah sing... i dont think they have very good marketing team, defects team or after sales team but they are at top 10... lol...

as for EW... from what I seen of my fren's unit... his hse has very little defects hence he can't gauge the after sales services by EW as they efficiently repaired all his defects... but at the same time... there's another owners with alot of defects... the after sales services quite efficient in repairing his defects but then here comes a question... why they don't build it correctly at the first place.... so what if you got an efficient defect team.... why the extra work?