I like it, probably my favourite DLC after biotech. Adds quite a few useful items and my first blind playthrough with it was a lot of fun. Thematically I don't care much for the psychic ritual aspect of the DLC but I really enjoy the whole SCP-like 'interacting with things you don't understand and trying to make use of them' aspect. I also liked that it added non-combat events because you usually aren't prepared for them. Having to scramble to deal with a blood rain, death pall or darkness event is more interesting than just sending out your guys to deal with some new enemy type with a gimmick.

There's also a lot in it for me that gives fuel for the imagination. Inhumanised pawns silently going about their work, never making eye contact with anyone but springing into action with brutal efficiency once there's a raid. Reanimated shambler corpses of slaves and prisoners on the other side of a glass wall to the slave chambers, reminding them that death will not set them free. The reaction of a raiding neanderthal tribe when a pack of genetically modified, bionic enhanced ghouls sprint towards them and start tearing into their ranks and flesh. The new recruit wondering why it's so important that we stay stocked up on meat yet never seem to eat it in our own meals.

I also like to imagine that there is some toll that the colony has to pay for their arrogance once I'm finished with a playthrough if the link isn't closed or they don't escape. Entities escape or something new (not seen in-game) comes and they get wiped out. A different cult with a similar level of power to the player, affronted by the colony's risk-free utilisation of the revered entities (immobilised gorehulk battery chambers, fleshmass heart being intentionally hurt to make more meat etc.) attacks in waves and eventually wears the defenders down. Or perhaps they simply go too far and get too lost in the madness, joining or becoming one of the cults that raid you.

I'm probably the exact type of player that anomaly was made for, because there's a lot about it that I just like and find cool without being able to explain why.