They're pretty new. For F class, no matter what, they're a huge step back for Hawaiian. Going from a widebody with lie flats to a generic business seats for the same price means I'll fly Alaska. There's lots of drawbacks in general of flying Hawaiian (website and only 1 flight a day) and if the F product is the same as elsewhere, it's hard to keep my business.
No matter what reviews you find, the product is a joke compared to the F in the 330.