I've used yellow 2.2mm before, and I thought it was excellent. Red has slightly more offensive potential, but Yellow is still fast and bouncy and just slightly more tame than red. Probably easier to use. I'm not sure about 1.8mm though, depends how you want to use your backhand. I like to loop and counterpunch with my BH, so I prefer 2.2mm.
Yeah the more I read about it, the more I'm amazed it's flown completely under the radar through all my research. My immediate order will definitely have an AK47 Red 2.2mm on FH, and I'm considering AK47 Yellow 1.8mm on BH. What do you think of the Yellow?
The one major concern I saw about the AK47 Red was the low durability. Is this a huge factor for someone who will be playing a maybe 5-10 hours a month at most? Did you face any issues with the rubber losing it's grippiness fairly quick?
Durability is not an issue at all. You can play 5, 6 months and it will still be fast and grippy and responsive enough. Compared to Hurricane, the topsheet is a little thinner and more fragile. If you hit the rubber on the table it will tear, but that's true of German rubbers as well.