Cool tool. I guess if you're more into speaking, or too lazy to type.

IMO, I find the use of grammarly pretty useful as well. I downloaded a google chrome extension so that whenever I use my browser (whether I'm going to post on bitcointalk or for other purposes) it automatically detects whenever you make a typo or wrong spelling, and even makes suggestions for your grammar. If you're really keen into being better in English, then I suggest using a tool like this. For those who are having a hard time or are still coping with the basics of English language then this tool will surely aid you.