Candy at KTH and the ladies at VTC like to publish the testimonies of converts to their brand of Christianity. Most people who convert do so because of marriage or friendships. A few do it for spiritual reasons.
Critically thinking for a moment...should we trust the testimony of a convert when it pertains to the faith they left behind? On the one hand, they do have the experience of at least being in the pew at the other church. They may have varying degrees of other experience with the corporate church. So they do have some credibility. On the other hand, they are not likely to defend the church they left -- why would they?--and their testimony is therefore biased and subjective. With little exception they will defend they new faith they have chosen.
We, of course having our own personal bias, agree with whoever converts to our way of thinking and disagree (and often try to discredit) those who convert to that with which we disagree.
Let's look at the convert issue from a different angle.
Many Christians (both RC & non-RC) convert to Judaism. To Islam. To Buddhism. To Hinduism. To Mormonism. They become atheists. Pagans. Wiccans. Jehovah Witnesses. The list goes on....
Is the testimony those converts give about Christianity wholly accurate? Totally objective? Or would you say it biased against Christians and they don't have a clue what they are talking about?!
Conclusion: The testimonies of converts should be taken with a BIG grain of salt. While they may have some experience (possibly exaggerated) they are by no way, shape or form an reliable, objective source.