Posting here is best, unless the discussion starts at the article level.  After posting your response, type 4 tilde's "~" at the end of your post and that date stamps your posting.  Right now an automatic bot is running that does it for you. Some other hints - Use the "Show Preview" page when you are editing and review and make changes until you're satisfied with your edits, then "Save page" - otherwise the page has a long history of edits for the same update.

I only want to re-emphasize again that WP is an encyclopedia, not here for promotion.  I'm glad you are expanding your article and will hold off on an WP:Afd until other editors chime in.  To be safe, make sure you present information in a neutral and unbiased fashion - do not add promotional language.  Present Pros and Cons - a clear indication that you are attempting to be unbiased in your presentation.  Keep "external links" to a minimum and use inline citations instead.  "Official Website" is sufficient.  If you get a great review from an outside, independent source, reference it.  Don't use paid inclusions or PR material - again a red flag because they are not unbiased.  The standards are written up pretty well here WP:CORP.  Good luck.