Purchased these Feb 2018 just after buying my 2004 Jeep GCL 2.7, due to the previous Volvo V50 having a PSA engine....
Have done about 12k miles on them so far, tried in gravel, mud, snow, ice and rock and will say that they are a superb all-rounder. I have full confidence in them now and know I made the right choice in buying them.
Economy - my Jeep is getting better MPG than manufacturer stats
Noise - no noticeable extra noise compared with the road tyres they replaced
Wear - hardly wearing at all, I'm not surprised they last 50k miles. Makes me laugh when I remember wearing out 4 new Yokohamas in 10k miles that were fitted on my classic (proper) Mini.
Tarmac - not pushed it to it's limits on the road as it's a proper solid axle 4x4, not a racing car, so these are more than adequate for the vehicles that they were designed for.
Wet grip - never had reason to panic, it goes round corners, stops etc as it should
Snow/ice - it's fantastic to be able to drive past £80k "premium 4x4s" that are stuck in snow! This is worth the investment alone!
Mud - not really got in-deep as they are not MT tyres, however, I have been on slippy stuff on a hill (snowy wet grassy sloppy mud) they got me up it. MT tyres would without doubt excel here.
Rock/gravel/sand - no worries here really either
I would recommend them to anyone with a 4x4 or AWD that needs to go off road or have a play once in a while, or is even just wanting peace of mind - they will not let you down.
Mud Terrain tyres they are not, so any serious off-roading will require more aggressive tyres.