I am using Windows 7 and I have a problem with one of Google Fonts: Raleway. I checked and this font looks very good in Firefox (ver. 34) but in Google Chrome (ver. 39) it looks terrible on my computer. Sometimes I cannot read the text.
I downloaded Raleway Google Web Fonts thanks to this link:
<link rel="stylesheet" href="http://fonts.googleapis.com/css?family=Raleway%3A200%2C300%2C400%2C500%2C600%2C700&subset=latin">
Print screens (Windows 7):
Google Web Font: Raleway in Google Chrome 39
Google Web Font: Raleway in Firefox 34
Raleway, Google Web Font you can find on http://www.google.com/fonts/specimen/Raleway