I along with my friends use to visit Mata Darbar every year usually in December, But now these days facility available on the way or at Bhawan is not as they were in some year back. Now yatra path are dirty, toilets are not clean, corruption in paid services. Shire Board people allow their known to go in paid pooja free of cost.I dont want to explain any more. One can check this link and can easily understand what the situation is.
https://grahakseva.com/topic/mata-vaishno-devi-shrine-board
Regarding yatra, I always visit in December or January. My suggestion for every yatri going in that season, Never pull off your jackets and sweaters if felling hot while climbing, doing this body will get winter strokes and your heart will start paining, Dont be in hurry, take enough time, No prepaid mobile works their so always take a postpaid number.
I request management of Mata Vaishno Devi Shrine Board to improve the services.