I think I know the Australian bikkhuni metioned in the blog (supposing there's only one). The last time I heard about/from her in august 2009, she was still samaneri.
Although I have never been to that monastery my self, I know (very well) a mahayana bikkhuni who stayed there for some time last dry season and was a close friend to the Australian bikkhuni. She said the bikkhunis there observe very strictly the vinaya. They don't handle money at all. All the bills are directly paid by lay supporters. Two of them go for almround each morning and the collected food will be used for the whole monastery for the sole meal around 8 a.m. There' are plenty every day. Clearly the local people are more than sympathetic to them.They don't have personal hand phone but use the collective one, kept by each of them at turns. As means of transportation, they use foot, unless being offered vehicle from sponsers. In short, they try to live a life as close as possible to the Buddha time.
I don't know much about meditation instructions and guidance there. However, from what I know, the Head Bikkhuni there is rather well known as a Abhidhamma teacher than a meditation master. She is sometime invited to deliver Dhamma talks even in well known temple for monks.
The monastery is situated nearby the forest, so during the dry season, there's possibility to practice in solitude in that forest, which seems to be quite safe.
I think that's all i can recall accurately from the Mahayana bikkhuni's accounts.