I think the new one is OK for a quick overview, but I still prefer email. Sieve + this rule[1] files emails from each repo in a folder (following org structure), and I can flag things I need to come back to, mark things I don't care about as read, and have thunderbird pop a notification in the top of my screen for repos I really care about.

(I know I am definitely not the target audience for the page)

1 -

  # GitHub
  if allof(exists "X-github-recipient",
           header :regex "List-Id" "<([a-z_0-9-]+)\.([a-z_0-9-]+)[.@]") {
      set :lower "organisation" "${2}";
      set :lower "repo" "${1}";
      fileinto :create "INBOX.GitHub Code Review.${organisation}.${repo}";
      stop;
  }