Lexus is in the middle of enhancing its service...I think its dealership network is rather small and overcrowded, expansion of some sort is needed so that the customer-service ratio is improved and the stellar reputation can be maintained AND enhanced.

In Japan, I think the service will be even better.

One other difference is that Lexus dealerships have the burden of 'excellent service' reputations to match...while non-luxury and some near-luxe brands don't have that burden as much, lowered expectations can = more surprised satisfied customers. That said, Lexus needs to go the 'extra mile' to surprise customers that are already with high expectations.