It's lightweight, feature rich without being bloated, has a minimal learning curve, good editor, I use it all the time for my C programming. I love it :)
I was looking for a secure file transfer thingie that saves me from having to type in huge scp command lines, and look what I found! It's got a drag and drop interface to SCP - you still have to fill out the pwd for each transfer but that saves lazy me enough keyboard time to be very happy with this ap. And it sure looks like this ap is going to have a few more neat gizmo's for people like me in future releases.