If you plan to use +Grammarly.com
premium to improve your writing-
1. Make sure you read their terms and condition - “All subscriptions are renewed at the subscription level(s) in effect at the time the then-current subscription term ends..” Otherwise your bank statement may surprise you.
2. Once you get your grammar checked by +Grammarly.com
, send a small piece to a professional proofreader, the number of issues may also surprise you.