This is an interactive event. If you only speak English, you should attend at one of their scheduled times for an English tour.
There are two times they take photos of you within your group (even a group of 2). You start out with a photo shoot, which of course they offer you a chance to buy it at the end. So make it a good one, especially if you're the person who enjoys such photos. The other photo is during the floor drop ride, which occurs at the very end. Some planning on your part would allow you to pose for this.
Note: At the start of the attraction, they show several broken phones and cameras and ask you to secure them and turn them off. There is only one point where they could end up like this and that is during the free-fall drop at the very end of the attraction. At no other time would you have any issue getting your things broken. I had my sunglasses in my shirt pocket. During the free-fall ride, they flew out (which interestingly enough was in the photo).
While there is a little history in the tour, you aren't going to come out a historian. There's a torture chamber where they have some fun with you (my wife was jailed, I was strapped to a chair). There's an Inquisitor, two people are called to the stand. Others I'll let you discover.
The actors are terrific. I would return just to see them in action again.
And of course, you're wondering about the bathroom. Well, I think it is only in the men's room, but there are some vending machine items in there that I've never seen before in the USA. I'll leave it at that.
Oh, and there's a foosball table in the waiting area outside the restrooms (Water Closets they call them, look for the "WC"). It costs 50 cents and is worth a round.
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