It's... aight?

Once you know its few mechanics it's painfully easy (if you do it via normal DD entry with poms and incense). Just don't do the outside trial if you do not need practice because the reward is nothing. I got 3 pilgrim potions (from a 25 minute sch solo) and an other player in a stream said they got a phoenix down. It has a chest on clear but unless there's some secret drop out of it there is little reason to do it. I one shot it on my first solo inside the DD with just a little reading (because I don't have the time to world prog things).

I will add it's only painfully easy if you can read and react to cast bars and floor patterns. Stuff you learn (or should learn) from other content.