To all the realtors out there.

I was reading a blog from Mariana Wagner about how she hates the perception some people have of real estate agents.  As in all profession there are good agents and there are bad agents (there are also great agents and horrible agents).  There seems to be so many part time agents that sell a few homes a year that it is hard to judge the whole profession together.  The same is certainly true for loan officers.  I am always interested in the opinions of the realtors I work with as to what I could improve.   So with that in mind what are the things loan officers do that you love or hate?  What is the biggest problems you face when interacting with lenders?  What are the best lenders doing to knock off your socks?