Deletion of SigmaStat

Comment: What's the issue with product reviews? SigmaStat has been the subject of in-depth reviews in ''The American Statistician'' http://www.tandfonline.com/doi/abs/10.1198/000313005X42156?journalCode=utas20#.V2KCZ1QrI1I and ''InfoWorld'' https://books.google.co.uk/books?id=gjgEAAAAMBAJ&pg=PA84. I'd call that |significant coverage in independent reliable sources
Stance: keep
Cited policy: Wikipedia:Notability (WP:GNG)

Comment: Notability established by product reviews in reliable sources: https://www.highbeam.com/doc/1G1-132271443.html, https://www.highbeam.com/doc/1G1-193181841.html. If you think you need to stubify the article because of  issues, go ahead and give that a try but it's not something that AfD needs to be involved in. Rather than deleting the article or its contents, it would be better if you would tag the article or describe your concerns in a talk page post and give other editors time to make improvements; 
Stance: keep
Cited policy: Wikipedia:What Wikipedia is not (WP:PROMOTIONAL||WP:NODEADLINE)