I have a copy but have never played it.

A couple of thoughts off the top of my head, but keep in mind that it's been a while since I looked at it:

1. Three basic books, much like OD&D, only regular sized instead of digest size. Colored fonts a little odd to read, but a different color for each book.

2. Percentile based rather than d20 based, which to me was a bummer since that made it less compatible with OD&D without some conversion. Plus, I don't like games with percentiles much. (e.g. Boot Hill, James Bond 007, RQ, etc.)

3. People say OD&D is confusing to read, I think AiF is similar in this way. I suspect it's a function of people who aren't really professional authors and without any good models to copy writing game books. Nowadays we have the advantage of getting to study games that worked and ones that didn't but back in the 1970's there weren't many to look at.

I like having it because Dave did it. I'm not sure if I'll ever become inspired to do much with it, however.

Guess what arrived in the mail today!? :) 8) 8)

-Havard