What a good cover letter does
A cover letter answers the question your CV cannot: why this job, and why you. Recruiters who read them look for a real reason you want the role and one or two pieces of evidence that you can do it.
Generic letters fail on both counts. A letter that could be sent to any company tells the reader nothing, and a list of adjectives proves nothing. The best letters are short, specific and built around the requirements in the posting.
Nextrova starts from your analysis: it knows which requirements you meet and where your CV shows them. The letter leads with those strengths and stays within what your CV supports, so you never have to defend a claim in an interview.