As a longtime fan of the comic I LOVE this series. The casting of Morpheus is one of the best casting choices I've ever seen in any adaptation and every other role was cast perfectly or as close to it as possible. (Although I feel like failing to cast Ruth Negga as Death was a missed opportunity)
If you're a fan of the comic you'll love this show. If you have no idea about any of it you'll still love it. I wholeheartedly recommend this show AND the comic if you've yet to read it. Also, while I've got you here, be sure to read the Lucifer comic also.