Despite Kepow's harsh words breaking my heart, I was able to complete my first red raid today. With no wipes, either. I got pugged on a guild called gods of olympus and they were pretty good geared, so odds are they carried me a bunch.
And I liked it, when you get past the DPS check, the mechanics are actually very fun and require some skill. They're mostly the same mechanics as green, only you can't ignore them; so gotta keep moving on twins because of circles; gotta dash away from slag when he does the circle; monolith is still free; sisters are way harder because bubbles seem faster and they instakill a lot of characters, the cone attack also seems to slow down you a lot more. And Surtur is surtur.
By the way, it is a good time to red raid because Surtur is nerfed to hell. Since rocks are broken, his sword only causes like 5k damage, meaning you can basically just facetank him the majority of the fight.