What do you like best?
Its fast. I mean fast.
Opens in less than 3 seconds.
Finding methods, functions, class, variables is instantaneous.
It opens any type of file without the need to click the mouse 5 times.
Easy to learn the basics. You can set the shortcuts mappings to any of the major existing IDEs which will boost up your productivity in the beginning.
What do you dislike?
Step learning curve for the more advanced features (macros).
Auto complete could be improved but it is OK as is.
Configuring the project to compile, debug etc. is complicated; although very powerful,
What business problems are you solving with the product? What benefits have you realized?
I was working in mainly in C at the time.
I have used Slick Edit for java as well.
The greater benefit is speed, and if you have the patience to configure the macros, it can really be a pleasure to make some repetitive tasks.