All you need to book is your flight and halfway accommodation (recommend Laban Rata as it has hot water). Everything else you can book when you get there (guide, mountain pass, etc.)
You have to be fairly fit but it's for all abilities and having your own guide means you can take as long or as quick as you like to climb it. You can even pay extra and have your guide carry your bag....... The second day is the toughest though, especially one part where you need to use ropes. I really enjoyed doing it and would highly recommend!
