I just wanted to drop you a note to let you know what a valuable employee you have amongst your team. During my recent interaction with Brent, I found him to be courteous, conscientious, thorough and diligent. I know how difficult it is to deal with people, and throughout this time, Brent was a true professional. You can rest easy knowing you have such a competent person in your charge.
Also, thanks to you for any input you may have had in this final decision.