1.What is your opinion about the Safe Heaven?
The map is never the landscape itself. I believe therefore that this might all be another name for "Summerland", Monroe's "F27" or (for the theosophists,e.g. Kurt Leland) the upper Astral or lower Mental planes.
Otherwise the descriptions of what we do there fit similar accounts about the highest (better: freest) afterlife area (Monroe, Campbell, Leland, Cannon, Newton), too. I assume the "Safe Heaven" not to be a BST despite the word 'heaven'. Of course, BSTs might be heavens in their own right, too, but since I see no 'religious' expression in the descriptions given above I would assume it's Focus 27 or such.
2.What is your opinion about the Safe Heaven was guarded by the Pleiadian fleets?
It is interesting how many references there are to our Pleiadian 'origin'. Just reading a Kryon (channeling) book and it says that they actually influenced our DNA ('spiritually') to help us evolve many thousand years ago and are still watching over us.
Pleiadeans are said to be of "northern" looks, blond and tall.
Many indigenous tribes, also some native-american peoples, describe in their myths the Pleiades constellation as their 'home stars' from whence their ancestors came. There is also a whole Greek mythology about them, who called them the 'seven sisters' but I also heard this expression elsewhere.
Reconnective Healing bases itself on Pleadean energies. They claim that it helps us re-align and "reconnect" ourselves to the axiatonal lines of the universal grid again. It is also based on the Keys Of Enoch (Hurtak).
There's a lot more, including however some very likely hoaxes such as Billy Meier who claimed to regularly meet them, but probably made it all up. (http://www.crystalinks.com/billy_meier.html
Generally I keep an open mind about it. It's possible. But again: it's also a 'meme' that repeats itself over and over again, so there might be truth in it but so far: we have no real proof.