I ended up with the new config
The seats are very nice, and the screens are top notch. Latam's bedding is also some of the most comfortable I have ever flown with.
Even with the new design there are some gripes. The seats are extremely narrow since they had to fit 4 suites across on a 767. I flew an old TAM 767 the next day with lie flats in 2-2-2 config. Those were easier to sleep in since your are not as confined.
I was also in the honeymoon seats and found it quite annoying that the middle divider could not be moved up or down.
All in all though, it was a easy ride to Peru.
If anyone has any specific questions regarding the cabin or service I'd be happy to try and answer