Horus Heresy: Betrayal is without doubt the prettiest rule book I have ever owned. I'm not talking about gamers porn inside, I'm talking about just the look of it. Its like picking up an official history of the betrayal written by the adeptus scriptarius* after the war. *(I think I've made that up)
Loads of fluff at the start, well written, not your usual GW vomit fest. I would assume they've made a conscious decision to pitch this at the right audience (older saddos with disposable income rather than teenagers).
Really nice ideas for campaign games, I want to read more of this but what I did look at was very interesting.
The 4 legions covered get quite a lot of coverage with colour plates for the tanks and armour.
The army lists are great, loads of options to mess around with, I could feel my urge to create the ultimate army twitch as I read them, always a good sign.
So its expensive but is it worth £70?
I think its biggest drawback is that it is incredibly none user friendly. I don't mean its layout, I mean its weight. Even sat in a chair reading it was putting a strain on my back. From a players point of view it might of been better to split the fluff and lists into 2 volumes (sold as one item) but what would that of done to the cost?
I personally don't think its worth £70. I do however like it a lot!
In my opinion its overpriced by about £10, but I don't regret buying it.