Here's some info on Islam
Every Muslim is unique and wonderful in God's eyes. Followers of Jesus Christ should be careful not to generalize or presume that all Muslims are the same.
Every Muslim is someone whom God loves
From Ismael of God-Repent & Return
Galatians 4:22-25 tells us that Ishmael was born as a result of works resulting in slavery. Islam means submission, and a Muslim understands that he is a servant of Allah. While this is also a Biblical aspect of our relationship with God, it is incomplete. As Christians, through Jesus, we know that we move from being servants to becoming sons and daughters.
Pray that Muslims will also understand that God desires for everyone to know Him as children and not as slaves (Galatians 4:7,Matthew 18:3).
Islam teaches that a person must do enough good deeds to outweigh the bad deeds in order to make it to paradise. Even then, there is no guarantee for a Muslim of salvation. As a result of this belief, it is difficult for many Muslims to fully understand the basis of forgiveness of sins. It is also difficult for Muslims to understand repentance.