New Bluesound's Node 2i

Yes, from their website...

Dual-band Wi-Fi

Bluesound has also upgraded the Wi-Fi chipset technology in its Bluesound Players to the latest and greatest Wi-Fi 5 (802.11ac) dual-band offering. Best-in-class products deserve best-in-class connection; with the new Wi-Fi chip onboard, Gen 2i owners can take advantage of the less noisy 5 GHz band if needed. This results in faster connection times and fewer interruptions from other network traffic.

I am using Ethernet and an external DAC.  Wonder if there would be any further difference?  Apple AirPlay is new and would be nice.  

Ordered one today through Amex Awards and ships from Crutchfield.  I’m really excited to find out how this sounds on my big system.  I’ve really enjoyed using the Vault 2 in my modest mountain home system.  Hopefully my expectations will be fulfilled.

I have the Node 2 and use ethernet so the only improvement for me would be the Airplay 2 which I can't think of a use for off hand.

It's funny how a few board mods can change a Whathifi review from 3 to 5 stars. 
The reason you see the same companies winning whathifi awards is probably the same reason for never seeing a Hegel review in Whathifi