Test Link: 
http://gujarati.oneindia.in/temp/google-font/notos-sans-gujarati/

We found below issue:
1 - font shape is not proper in some letters. (I attached a pic with 
problems in font and Numbers)
2 - When we zoom out the fonts, feel uneasy to read.
3 - Spacing between letters are not as good as current font.

Please refer the attachment.

-- 
regards,
Mukesh Kumar
Sr. Web Developer
Greynium Information Technologies Pvt. Ltd