Hi DS. Welcome to our little corner of the 'net.
As Bob Rosenthal(Router Workshop series) always said "the bit is round, and it doesn't matter what direction you approach it, it will cut"
I use a simple, home-made fence that I fasten to the table with c-clamps. The "fancy" store bought ones are nice, but I've not seen the need to purchase one. I don't use a mitre slot either, just use a sled or push block that rides along the fence.
The above is "MY" choice, and certainly not the only way. I've looked at different commercial fences, and while they look nice, I'm cheap (ask my wife, she'll tell you) and don't want to spend the money on them.
Sometimes I wonder whether the world is being run by smart people who are putting us on
or by imbeciles who really mean it.