My favourite thing about Enso: They charge 15£ for a single ride, and just keep the seat empty if no one buys ít. With basicly a whole car missing, Icon still managed to get a 15 minute queue on an otherwise walk-on day last year.
Once they decided that no one would purchase 15£ for 1 (ONE) ride, they switched the trains and Icon was down to 1-2 trains wait.
I talked to a hotel owner after that visit, and she also told me that many people would like to try Enso, but are not willing to pay 15£ for it.
I get why the upcharge is so big, I can imagine that the new car was not cheap and BPB have to recoup the costs in some way, but 15-25£ per person might just have overshot it.
Back to topic: I'd rather have Valhalla only for a few hours available during a quite day, but fully operational, than having a half experience for 8 hours. The only thing I'm really mourning after is the ice room. Knowing nothing about Valhalla on my rides in 2019, it just blew me away that we were actually going through an ice cold chamber (without snow, though).