This answer can also be found on my "Questions about Scientology" page.
I support the progression of man-kind, and the resolution of one's problems by being totally honest and dealing with them head-on. I support the many charitable acts the church has done. I do not support the way the church has treated critics.
Thank you for recognizing that the Church of Scientology and Scientologists do a great deal of charitable work. Also I agree with you about honesty and dealing with things head-on.
On the "way the church has treated critics". First of all, this is a generality. To answer the charge we need to know which specific individual or individuals treated which specific critics in what specific way?
On a more "general" note, I'm afraid the complaints of "critics" just don't hold water as far as I am concerned. If a tenth of the claims of these people were true then half the management of the Church would be in jail right now.
I think Andrew Morton is a great example of a "critic" who claimed he was being harassed and it turned out he was lying. In November of 2007, Morton was quoted in the British paper, Sunday Express, alleging harassment by the Church. He stated "I have received threats from the Scientologists and things have become pretty heavy - to the extent that it is more than my lawyers can handle. I have sold my flat and I am not telling anyone where I am moving. I intend to disappear for a while." This statement was a total lie and the Church had never threatened Mr. Morton in any way. So great was the evidence of the falsity of Morton’s claim that the newspaper printed a retraction and apologized to the Church for the falsehood. See The Church of Scientology: An Apology
More data: Church of Scientology statement: Response to Andrew Morton's unauthorized Tom Cruise biography see "8. Are Scientologists taught to harass people who oppose them?"
Anti-Religious Extremists - including some "critics" of Scientology
What does the term "fair game" refer to?
What does "suppressive person" mean?
Why do some people oppose Scientology?
Why do some people oppose Scientology? (2)
Can Scientologists come and go as members of the Church if they wish?
Why has Scientology been to court a lot of times?
What is Scientology’s view of democracy?