I had never heard of them before I went to Rome and now they are my most hated tour company imaginable. They provide no value whatsoever, they just book up existing tours so they can charge you triple or quadruple the price for the same thing. I paid £130 a person to visit the collsuem and they just sent me a voucher of a local company that charges which cost £25. Their app is a disaster and just lies about what tours they have and the price changes when you come to book. They provide nothing to tourism except another unwanted expense to your holiday. I hope they go out of business as quicky as they have come onto the scene.