Your translation tool seems to be working fine. The thing to watch out for is when you're translating product features and details. Some languages have multiple meanings for the same word so it is easy to take the wrong context in translation. The best way to check for errors is if you have a friend or co-worker who is fluent in the targeted language.
You can also use reverse translation, back to your language to see how it is returned. Unfortunately, a translation tool may simply repeat back the phrases you requested it to translate.
