I am using it from the last few days and it is found to be up to the mark. I have used it after so much trials to other companies and then suddenly I approved it to use it to my family and I am glad on my choice so it is good.
I would not like to add names of other company since I do not want to compare it to others but it was really a curse to me and my teeth had been became some what black to some parts.
It is not so costly means it is under my budget, it worked in under two weeks so it is rated as 4stars.