"Very cool gem!".to_spanish -> "Muy fresco joya!" This sounds like it would in English: "Fresh very jewel!". Makes no sense in any way, neither south american nor european Spanish. I'm sure there are many cases that it helps, and it actually did help me in many cases, even for learning German. But eventually, for writing something I always have to check the grammar with a native german, because grammar changes the whole meaning or sense. For a web page, I think it doesn't help reach the spanish community.