The rosary is much more than a vain repetition of Hail Marys. I have greatly benefited from reflecting on Scripture while praying the rosary.
Here is the introduction from a website that explains how to meditate on Scripture while praying the rosary:
The meditations on the rosary that accompany each mystery are the soul of the Rosary. They are what give the Rosary it’s life, purpose and power.
The Rosary isn’t simply reciting prayers from memory. It is so much more. It is one of the most beneficial ways of praying for it unites both vocal and mental prayer.
Contemplating these mysteries in the life of Jesus and Mary will excite in you a deep love and reverence for God.
This relationship with God will sustain you throughout your life.
Here you will get a glimpse of the deep meaning behind each event recounted in the Rosary mysteries.
http://www.how-to-pray-the-rosary-everyday.com/meditations-on-the-rosary.html
Oh. O.K.
And yet you can go right to the Word and read it an meditate on it itself.
You can memorize it and thus meditate on it when you can’t read or are otherwise busy with your hands but have the brain free.
Psalm one promises a blessing for those who mediate on the word of God.
No need to add any extraneous prayers that could distract.
Spiritual activity does not have to be filtered through Mary, the rosary, the church, any church.
Jesus gave us direct access to the Father to come to Him boldly.
.....Mary is the perfect advocate and mother to you because Jesus fulfills every one of Mary's requests. Bring all your worries and concerns to her and she will present them to Jesus her Son on your behalf.
There's nothing in the Word about anyone filtering anything through Mary.
There is a whole bunch on casting your cares on Him.
And this is one of the ways cults claim to be Christian. Mix in just enough truth with a little false teaching and the your focus is no longer on Christ alone. Now you need Jesus plus Mary.....or rather Mary plus Jesus
Much of the rosary is a focus on Mary. Sure Christ is mentioned but the attention is on Mary primarily. This is why Christians should reject the rosary.
Joseph Smith had seer stones.