>>2,3
It's pretty fun, at least at first. As you go through Book 1 you complete your profile, buying the necessary equipment (cauldron, vials, books, etc.), picking your pet (though you can only choose an owl or a cat or a toad), and going through a few questions to get a "personalized" wand (there are three core types, a shitload of wood types, variable length and flexibility). Eventually you get more questions after putting on the Sorting Hat and you end up in one of the houses.
You can only go through the first book for now. The book is divided into chapters and each chapter has on average three semi-interactive scenes - you can click on various items and either get them added to your inventory or unlock Rowling's writings which flesh out the world a bit. But you're not actually reading the book and there's little interaction so it eventually gets somewhat boring.
You complete your profile by doing the same things Harry does - you open an account in Gringotts and go shopping on Diagon Alley in the chapter he does, and you are assigned to a house in the chapter he is.
But after you finish the first book you realize there isn't much else to do. You can brew potions (which takes time, at least an hour for a single potion) and gives you house points, but I don't think you can use them in any way yet. You can also practice spellcasting and have wizard duels, but it seems that dueling has been
under maintenance for about a week or even longer.
I'd assume that most people who want to play Pottermore do so because they want to experience being a student at Hogwarts, but it's simply not interactive enough to be satisfying. You can go back to Diagon Alley but a lot of it is still locked. You have an inventory but pretty much all you can do with the items you have is send them as gifts. You collect spellbooks but you can't really cast the spells since there's no
world to explore. There's also little interaction with other players - you can add them as friends but I can't even find a way to send them messages. There are also two pages (the Great Hall and your house's Common Room) where you can post comments (and talk with other players/members of your house that way, I guess) and
Like them.
The only sense of challenge or accomplishment comes from the House Cup, and there's little fun to be had in that (though it feels nice that Slytherin has the most points even though it has the least members).
There's a lot of potential there, but sadly it's not being used, at least not yet.