Our hike in the Pirin and Rila mountain reserves was wonderful! Organization was tip top. Our guide, Ani, was superb! She was an interesting person, very knowledgeable, very friendly and a great pleasure to spend time with. She paid attention to all details and took care that everyone's needs in the group were catered for. We really felt we were in good hands. The scenery is great and on most days we had the great expanses to ourselves. The only day on which we meet other hikers was on the hike to Musala. The cultural part of the trip was also very interesting. It was a great experience and I would recommend it to any serious hiker. You need to be in reasonably good shape as some days are quite long. But if you are, I don't think you can do better. This sounds like a review a friend writes :) but it is not. We basically meandered into this hike and were very glad we did so. HIGHLY RECOMMENDED!