I've never had any issues with next-day or two-day delivery with Prime.
Having recently purchased my first 4K TV, I'm enjoying Prime Video's nice selection of 4K HDR content at no extra cost. Previously I had only been watching the occasional original, like The Man in the High Castle, Mrs. Maisel, or Jack Ryan. But for the first time, it's become my go-to streaming service. I'm currently watching season 2 of the Boys, re-watching season 3 of The Expanse, and just finished season 1 of Hanna. And I've got tons of stuff in my queue.