Actually, what service you need? Just buy cheapest. Got problems all send back to Distributor for warranty only.

instead of asking after sales service good or not, why not dealing with the distributor directly (assuming you are live in klang valley).
for example, i rma my samseng monitor before direct deal with samseng only take 1 working day, if send to the seller, how long it will take?
same goes with my logitech mouse too, 3 working day direct deal with distributor and i get a new mouse