Is grammarly.com Safe?

It's a helpful website, I should say. It helps to get rid of the majority of mistakes connected to grammar, sometimes spelling and the killer feature - possibility to adjust the style. Additionally, I like it for its recommendations how to rearrange the sentence in order to make it look more genuinely. Not even genuinely, but you know, readable, according to the chosen style in the settings. It also helps with punctuation, but sometimes it makes to change the punctuation where you are fully convinced of its correctness.

COMO ODIO ESTOS ANUNCIOS PORQUE CHUCHA VAS A NECESITAR UNA EXTENSION PARA SABER ESCRIBIR? PODRIAS AHORRARTE UN TIEMPO Y APRENDER A ESCRIBIR BIEN APRENDIENDO ADEMAS ESO TE LO ENSEÑAN A LOS 2 AÑOS PARA QUE VAS A NECESITAR ESO? ADEMAS SPAMEAN ESTOS ANUNCIOS COMO NUNCA DE VERDAD A VECES ME SALIA LO DE 2 ANUNCIOS Y A VECES LOS 2 ANUNCIOS ERAN DE GRAMMARLY AHORA YA SE CALMARON PERO IGUAL LO SIGUEN SPAMEANDO