: Reviewers on Chessable and Chess.com highlight that the series has historically been the "de facto standard" for top-level game analysis, used by world champions like Anatoly Karpov and Garry Kasparov for preparation.
: Users on Chess.com forums have occasionally reported issues with serial numbers for downloadable versions, though many note that customer support eventually resolves these technical hurdles. Opinions on the Informant Series
: For amateur players, the analysis can be "overwhelmingly daunting". Because it relies on symbols rather than text, it requires a high level of concentration and a physical board (or digital reader) to follow.