I used Publisher (2.0! and then 95) quite a bit in the mid to late 1990s. I haven't used it since then because Word now has all the features that were previously exclusive to Publisher, so its purpose has evaporated. It's certainly true that Word has bugs and frustrations but I'd be surprised if Publisher didn't too.
It's very odd that they propose PowerPoint as the Publisher replacement. How do you create a fold out leaflet in PowerPoint!? Maybe most of the people left using Publisher actually only need PowerPoint's features, rather than the full power of Word?
> How do you create a fold out leaflet in PowerPoint!?
There appear to be templates for this in Powerpoint
PowerPoint is probably the replacement because it doesn't restrict where things can be placed (at least not by default). Word would be much more suitable, if only they made and advertised some sort of DTP mode that would do away with the image position defaults and let users put things over margins.