I loved the Into Darkness Klingon costumes and helmets, and the lead Klingon's blue eyes too! Then he unmasked and I was a bit... ehhh... it's fine, they evolved the look a little bit (pointy wispy ears!) and made it a bit more realistic but I kinda wished they'd gone a step or two further.
Discovery's Klingons are that step or two further - but! - I don't much care for the costumes. They're impractical (although they do appear ceremonial in nature rather than day-to-day wear) and make them look a bit sea-monster-ish. And yes, I see a little bit of Xindi in there.
So... they're fine. Curious if they'll be brutish monsters or a little more thoughtful. I liked the "Heart of Glory" roar during the funeral, that was a nice callback.