I hiked this with a group of friends July 2018. one of the best hikes we have ever done! We went with a group called Peak Planet and it took us 9 days to do the hike. 7 of those days you are above 10,000 feet. However the decent is the hardest part of this hike because in one day you go down about 7,000 feet. tough on the knees.
Listen to your guide about gear. Don't try and skimp on clothing because you will regret it. The one thing I wish I brought but didn't were crampons. They would have been helpful for the summit day.
overall amazing hike. would do again!