I'm pretty sure there is a meditation centre there, but not sure if it is for their private use or if they run courses.

It's at the very top of Dong Da Street. Also, the cable cars stop between 11.30-1.30 each day for their lunch break. So be prepared to spend a couple of hours there, which is easy to do anyway.

Да, но мне больше понравилась экскурсия от Mieltravel, намного информативнее и интереснее

I've never done it personally but met several guys who has been through the experience, however, as far as I can remember there is a time-frame commitment at this monastery. I remember someone saying that you need to commit for at least four weeks and other than that you should be ok to retreat yourself up.... ;-)

Definitely less time..

It takes about 7-10 minutes one way and the same back :) It is important to mention that we have been there in May, so it wasn't the high season and we didn't have to wait in the queue. You can buy some souvenirs and snacks from the street (corns, meet, bread) close the the pagoda but it was the ugliest food I have seen, so I am not sure about the quality. Just bring something with you :)