Probably the vets are very good at Pet Central, but the assistants need to brush up on their 'customer service'
There was one in the Sai Kung branch whom I found very rude so they never got my business either.
If you can get Dr Patrick Chong at the SPCA, he's excellent and follows up on calls. He even credited the charge for one unused medication and didn't add on an extra appontment charge.
Lovely guy.