Bad: Not just limited to e-commerce, the majority of service-based business here need to improve in general, think Japan (high benchmark it is). There are still many frustrations with courier companies on their handling of products (not handled with care, even with the 'fragile' label on), and service by courier companies varies by the branch you are dealing with.
Good: Besides the hiccups above, we have to admit that the general courier services here have improved over the years. Of course, it is a must for courier services to improve. Just look at Poslaju, of which set to become Pos Malaysia's main revenue generator come year 2018 due to e-commerce boom.