This was the first client site I did with Oxygen. It was several months back, but hey, I couldn't pass up the opportunity to be first to post on this topic:) And yes, I know that the Facebook feed in the footer is broken. I hate social feeds on the home page of websites, but the client is always right.
I used Ubermenu for the dropdowns. It wasn't my first client site, but the first one I built in Oxygen. I have been building with Divi for years. It's been great to add another builder to my toolbelt, especially one that is fast and does a great job with dynamic data.
Very awesome, I made the switch to Oxygen from all my old client sites in WP Bakery and it's been amazing ever since. I'll have to give Uber menu a shot, I've only ever used MaxMegaMenu in Oxygen, other than the built in menu elements