I landed on the AGC bivy last year and like it. I also have a an S4 harness that came with my Leupold Bino's, but it's a minimalist harness. I do like it on some occasions also. The only issue I have with the ACG is I wish it opened forward. As it is, it opens towards you, so it can't stay open which means extra movement on access. It's a little critique and may be specific to the way I use it, but overall it checked all the boxes I was looking for.