One of my callers just sent this to my boss (and cc'd me):

[boss],

I am writing you this email to let you know that sarudy is an asset to your team. sarudy answered all of my technical questions and was very professional with regard to one of my clients websites.

sarudy knows how to put the customer first and that is an invaluable trait that many people do not have.

sarudy deserves this recognition and so do you for having such a competent staff member.

Keep up the good work!

Thank You,
[customer]

Always nice to have stuff like this to add to the personnel file.