Gorbad's DLC has "Mostly Negative" Review Rating on Steam...
Interestingly, this contrasts a lot with the sentiment I noticed on reddit. Many people seem to be enjoying Gorbad's campaign and some even consider his campaign to be the most fun experience they had in WH3 for quite some time. I would expect Skulltaker to have a lower rating overall, yet it's not the case. It should be noted, however, that Omens of Destruction's ratings on Steam are not great overall. They seem to be stuck on "Mixed" while Thrones of Decay are "Very Positive".