Reddit reviews X-Factor Vol. 0: Madrox - Multiple Choice (X-Men)
We found 2 Reddit comments about X-Factor Vol. 0: Madrox - Multiple Choice (X-Men). Here are the top ones, ranked by their Reddit score.
Go with the MadroX limited series that preceded X-Factor. It's probably the best, simplest Multiple Man story out there, giving a great overview of the character with a nice story and great art, while setting up the X-Factor series to come.
I'd start with the MadroX limited run from Peter David, which was so successful, it spawned a new run of X-Factor (which if you are getting the individual issues, be aware that it goes from issue #50 to issue #200)