I’ve had a sabbatical from the Heresy series for the past six months or so due to Black Library changing the publishing formats of the books, and the tragic collector in me wanting to keep everything on my shelf the same size. Rather than spend my time crying about it on the Internet though (if the size of a book’s initial print run format has “killed your love for the series” you need to get a grip), I just caught up with other things like the Wheel of Time (which I didn’t get on with, but I digress) and WWII novels about the Nazis.
The Horus Heresy series for me has on the whole been a great success. I’ve loved how they’ve used it to explore some of the more obscure areas of the background, such as the Mechanicum, Sisters of Silence, Custodes, Thunder Warriors and so on that have been teased about for years, and to be honest they can take as long as they like to get to the Siege of Terra.