I would really give it no stars if I could and yes I have removed it from my computer. After writing and correcting and carefully proofreading twice in word I had no mistakes. Yet Grammarly said there was things I had to correct. I did that and then I found a sentence that was completely unrecognisable as anything I had written. Surprised I copied back to Word only to be shocked to find I now had 387 mistakes!
Stay away from it and save your money and especially if your English is not strong.
Read the other reviews here, post your reviews everywhere, these people need to be held responsible. In my country it is unlawful to take money without notification and a service has to provide what it promises.