Other than Father Larry Richards, I don't know of any Catholics that I respect, that have fallen under the Medjugorje spell (and he was already devoted to Mary prior to his visits there). Actually, most of the Catholic writers and religious that I admire tend to be cautious at least, if not downright worried about this unapproved event. I have only personally known one person who reported to having a conversion there, but as I got to know the person I saw little of Jesus or Mary in her, and no real desire to be holy . . . a mere outer shell conversion, with no change in the heart or soul. For her and others, following this fantasy is more hobby than lifestyle.
If you do a search for Medjugorje you are apt to find websites with links to other fallacious pseudo Catholic writers or visionaries, as well as a lot of new age silliness.
Thankfully it looks like we may soon get an official pronouncement to accompany the recent letter by apostolic nuncio Archbishop Carlo Maria Vigano asking the US Bishops to "warn" the faithful that one of the so-called visionaries now living in (and off of) the U.S. is giving talks where he is to witness apparitions (and make a few bucks as well).
Here is an article by Jimmy Akin on the subject :
14 things to know and share about the new letter on Medjugorje
We have Christ everyday in the Eucharist
We pray with our Lady every time we do a Rosary
We are filled with God's love every time we are thankful or sacrifice for another
Do we need to chase unapproved apparitions too?
(especially when we do that rather than the list above)