Oh Boy, What shall I tell you about this excellent piece of a program from Grammarly? Just the best, it has helped me a lot to improve my English big time, It's fast for remedying your English, as well as challenging to let you think more to change the way you pick your sentence and the words, by giving you hints and explanation. My writing has improved dramatically with the help of this well-made program. Both British English and American are available for your service.

好得很，除了收费贵了一点，但是用起来真心棒棒的。

Fantastic

Helps when I write my English papers and other things to help check grammar and spelling

Ayuda a mejorar tu redacción.

This tool is really making my writing much easier. Doing After Action Reports, as well as, filling out Standardized Report Forms, including, but

excellent

One of my favorite add-ons. Works great and is essential for writing in Firefox!

Its cool

It's a really helpful extension and it corrects a lot of stuff that I usually just leave as is and forget about, I highly recommend this even to people who think they are experts at grammar, because I thought I didn't need it but a lot of mistakes have been caught by it and proven me wrong.