Keep in mind guys, Predator 2's an average of 28% on RT. I'd say most of us probably substantially dig 2, despite being far inferior to the original.
Predators got an identical average RT score (65%) to that middling IGN review of 6.5 for this, too. Seems fan consensus on Predators was solid, while not anything seriously impressive.
*Shrug* Point being, the series was never some critical darling. The original's up-and-above the others with 80% average, but by modern standards none of us would consider 80 all that grand with an MCU movie or the latest Nolan film or whatever. It's sort of kitschy sci-fi slasher fare by design, not sure I'd write it off going by a 6.5-or-equivalent approximation so far.
As for the "something different" request regarding the series, it's a solid point, but I've never been entirely sold on the "do one in feudal Japan, do one in the pirate-infested Carribean, do one in Viking-era Norway" approach. It's cool conceptually, but sort of limited in a way too. Like we can already sort of extrapolate the broad-strokes historical reaction to Predators from Anna in the original, it's just going to be some cultural-specific equivalent of some mythological demon hunting that society's warrior caste or whatever. Not entirely sold on Shane's approach here, but at least it seems sort of...I don't know, expanding things out a bit somehow, whatever the new twists/motivations may be. We're getting more insight into the government stuff, we're getting the actual aftermath of a guy who's already survived a Predator encounter (any way you slice it, that's new), whatever the hell the dynamic is with this autistic kid thing. I dunno, it might not entirely work, but it does at least seem trying a little harder than "instead of Vietnam vets in Central America in 1986, let's do Bushido dudes in Kyoto getting picked off one-by-one in 1750".
Honestly, none of those reviews seem any more down on what's been done here than with Predators a couple years back. Which doesn't give the impression of setting the world on fire with excitement by any means, but sounds like it's at least pretty decent in the way that was.