It's funny you should mention that Chris - I'm using the same thing, and find it far easier to use than most others, yet it seems to have a relatively (no pun intended
) small user base. The user interface with most packages seems to be slightly counter-intuitive. Doing things in tree form is so much easier. The only minor problem I've found is that once you pass a few hundred entires, the autoarrange feature starts to struggle, and tends to overlap a lot of lines. Apparently the next release (if it ever materialises - development sadly looks as though it may have ground to a near or complete halt) deals with this.
The only other thing I tend to use regularly is the LDS Personal Ancestry File package, purely because it's great for working out the exact relationship of very distant relatives.
Dominic