I thk the lie flat for Max10 would really be great. Great for overnight 5-6 hr flights. But a bit disappointed that the A350 biz product is the same as A330 but I guess a slight improvement from the current A380 biz.
I like the A330 J product. It has a decent balance between privacy, spaciousness and aisle access. On the A350, you'll just need to stay clear of those 3 out of 31 seats for direct aisle access.
Is it the best J product in the sky? Not quite, but it's also far from the most elusive. I'd much rather have a reasonably good J product that's actually accessible, than an OMG 270 degree lie-flat minibar-equipped double-aisle access product that I can only judge by looking at pictures.