I've tried chimneys at a Christmas market I was at in Austria but I've never had it with ice cream, so I was interested to try to latest craze. In the end, I feel like the execution of the concept had let me down.
Staff: The place seemed a bit chaotic and the staff seem to be part of the reason for that. They don't seem to fulfill orders in the order they were placed which means some people had long waits while others got their orders almost instantaneously. They should really find a better way to call out orders since you can't really hear them in the back when it is busy.
Ambience: There's definitely a bottleneck with the layout of the restaurant. Plus there's no proper place for people to stand when waiting for their order so it can get very crowded. I lucked out a found seats in the limited seating area. On the plus side, they had free water.
Food: I liked the chimney, but the ice cream was not that great in my opinion. I had the apple crumble which helped bring flavour to the bland ice cream. But the worst part is that the flavours aren't mixed with the ice cream, so you have to get through the bland ice cream at the top to get to the actual topping flavours. The food looked nice though.
Overall, I'd probably come back to get a chimney to go next time but that's only if I'm really craving it. Otherwise I'd look for another place for dessert.