Read it all. Read the pro, read the con, read the "fuck the whole thing" bunch. I, personally, believe the Road to Xenu shouldn't be walked. My position can be ambiguous to some, as it's a bit complicated, but it basically boils down to that there are parts that are useful, and worth knowing, and there are parts that are bogus, in my view, and are dangerous to use with others or "one themself". I strongly believe that the Church of Scientology is a danger to individuals, to families, to communities and nations it is allowed to operate within, and should be disbanded and analyzed, as Zinj says, by forensic accountants. I consider that the Freezone/Independents are less dangerous, because they don't all advocate the Road to Xenu, and many are genuinely helpful people who are just trying to be of use to "their fellow man". I also don't think they are a danger to families, communities or any nations, and don't aspire to be.
Ultimately, Hubbard drank from many sources, and those sources are sometimes of value, and sometimes farcical or dangerous.
As ex-scientologists, I think that many here have enough experience with the Church and with the use of scientology to know the difference, or they will learn, if they play with fire. I played with fire. I got very badly burned, but I walked away "intact", and not as badly burned as others. I liken any scientology stuff "above" NED to playing with fire (Wall of Fire?), some walk away, and some become pretty batshit crazy. Same with dropping acid! Some people feel it is enlightening (and it can be), some people find it frightening (and it can be), and others would NEVER take a chance with their minds. Read about it. See if you really want to train yourself to accept the reality of implants that Hubbard laid out, so that you can then run them out in session: it's a waste of time, unless understood as strictly an exercise with no basis in reality, and worse, if you do come to believe it, perhaps you, too, could enjoy the fate of Lisa McPherson! Or maybe you'll be one of the lucky ones who come through the other side with your mind intact, but having wasted a lot of time and energy better spent in a hammock listening to the sea.
Questions of identity are real questions, but CC-OTIII aren't real solutions, IMO. Your mileage may vary. Just don't say you weren't warned.