I love RCS from my recent experience with it on Google Messages. Feels much lighter and cleaner than iMessage. Not quite as reliable yet but also quicker to oscillate backwards to SMS - feels less of a chore vs halfway loading and “failed to deliver” and turning green. Just switches to SMS for a minute. They’ll iron it out.I will say RCS using Google Messages on our Pixel's is damn near perfect though. My immediate family being my Wife, and two kids, we all have Pixel phones; 3 XL, 4 XL, 5, and 5a. And we have RCS enabled in chat features, and it works amazingly.