I'm at hotel rooms very often and about 10-20% of them don't have WiFi.
At first it seems a small percentage, however, when you need to go on-line, it makes a whole lot of difference.
You should have the Apple USB Ethernet Adapter just in case, along with a strip of network cable, just in case. That's what I do.
It may not have gigabit ethernet but then, if you really need to transfer that much data, maybe you should be using a different transfer method.
For internet and basic networking, 10/100 will do and give it's Apple, it just works, from the moment you plug it in.