Flying from London to Japan via China Easten

As above really, has anyone flown busniness class using China easten Airways, I would like to know what it's like, I've had a look at a couple YouTube videos but nothing flying with the same aircraft type /class

It's always the cheapest carrier by far but I'm a bit suspicious about it and if it's worth the money (have previously flown Cathay Pacific in premium Eco and was quite good)

I'd like peoples opinions please