There's a reason people don't hype this pack. The profiles are not bad by any means, but not spectacular either. Especially considering the price for the pack, which I frankly think is a joke compared to other offerings. For example, you can get the mega pack from Petr Canov (Peter's Crazy Profiles - great high gain stuff in there) in addition to the Katzbach Marshall pack (two very unknown gems in the Kemper world) for that money and I guarantee you it'll be the better buy, providing vastly more amps and cab IRs, but even more important the same quality if not better.
Again, that's not to say the GGD pack is bad! But out of the box the profiles sound too similar. I had to adjust literally every profile until I was somewhat satisfied: Lower the gain slightly, disable the Green Scream, swap out some Cabs.
In my opinion the GGD pack seems a bit "lazy made" and is not worth the high price: Two profiles of each amp where they slapped exactly two premade IRs on top, put a Green Scream on everything and applied the same EQ to every profile (rhythm & lead).
In conclusion, no hate towards GGD and if you like their pack I'm happy for you, but all potential customers beware and you may want to look into alternatives first - especially if you care about value to money ratio and/or are prone to buyer's remorse