I have both iPad and Surface and I've had the iPad for years. I've asked my girlfriend if she wants an iPad and she told me that she didn't because she didn't really find a use case for it.
When I brought home the Surface she said: "Wow, this I can use . Get me one!".
I don't really know why but she likes it and everyone that I've show Surface to and that have tried it out do infact like it, a lot.