kiranasa

It is okay to chant any names that you like, but by chanting Radhe Radhe you won't get love of God. Because it is not recommemded by Krsna or Radha or even Lord Caitanya. Lord Caitanya is the ONLY Person who could give love of God in this age, and He asked everyone to chant ONLY name of Krsna and no one else. "The Lord placed a flower garland around each devotee's neck. Then the Lord ordered: Sing Krsna. Talk of Krsna. Worship Krsna. Sing Krsna's name. Think only of Lord Krsna. Think of no one else. If you love Me, then please sing only of Lord Krsna. Sing of no one else. Whether asleep, awake, or eating your meals, think only of Lord Krsna day and night. With your mouths speak only of Him." (Caitanya bhagavata Madhya-khanda Chapter 28 Text 25-28)