You said what I wanted to say, and perhaps better. Thank you.
I went from version 5 to version 14 (talk about shock!) and it took me a while to get used to the new interface. Now, after having 15 since it came out, I can't imagine going back to anything else!
The way I can hide the Function List, Tag List, Templates, Scripts, Macros, etc. over on the left side to "pop-out" when I need them saves me valuable screen real-estate that I never had in other versions.
Being able to place the SSH/Telnet console in a tab on the bottom to pop up when I need it is invaluable as well. Hover over the tab, and suddenly it's 3/4 of my screen space. It gives me virtually full terminal view while I work with it, then pops back out of my way when I'm done. This is so much faster than opening another program to do this task, which before, since it was too difficult to "resize" it every time I needed it, I used another SSH program that I kept minimized until needed.
I've been so impressed with the improvements, that it's time to get the unlimited upgrade option.