Well I received the WLL today.
1) Cardboard box but with really slick printed imagery and slogans all over the outside and inside promoting in a visually interesting way things like "Let's Go Live!, 80+ Connected Sensors to One Weatherlink Live, Easy App Setup, 10+ Different Sensor Types, Stay Current. Just Ask Alexa!, Garden: Grow like a Pro, Wine Cellar: Air Temp Matters, Pool: Keep Tabs on the Temp" etc.
2) The plastic housing is fine, feels a bit like thinner cheap plastic with visible mold lines etc. but whatever, this isn't something I'd keep out and about. It isn't the plastic quality of an Echo or Apple TV box or anything, its very utilitarian.
3) They include a short Ethernet cable and it has a port but I used Wi-Fi.
4) The device takes 4 AA batteries for backup (128 hours estimated storage time, I believe that was at every 15 minutes so I suppose now that I have it set to store every 5 minutes on my Pro account that must have gone down, you would think that in 2019 they could put in enough money for a lot of backup data.)
5) A blue light flashes when ready for pairing and if you don't do it within a few minutes the light goes out. To reactivate there is a capacitive touch sensor on the top (weird spend of money in the design) that when brushed turns pairing back on.
6) You go into your WeatherLink app on your phone (I'm using iPhone) click your account button then click the "Add WeatherLink Live" button. Pairing was near instant for me, you select a name for your new station, then tell it what type of station you have and on what transmission channel and it lets you pick your upload time rate (fastest is 15 minutes until you upgrade it to pro which doesn't appear possible in this initial setup, just once complete). You tell it how you want to connect (I selected Wifi) it has you select the wifi name and password and done...
7) That's it... the station instantly appears in your app and within a few minutes the first upload of data occurs.
In the app you can make modifier adjustments to temp, wind, baro, rainfall YTD etc. for the WLL.
It was all very seamless. As of now WL 2.0 shows "both" my stations but they are redundant, one is uploading from a WLIP connected to my Vue console and the other is the WLL but both are tied to the same station. I intend to allow rain data to merge over the next 24 hours and then I will deactivate the WLIP and switch to having my WLL do the uploading to WU and CWOP. At that point I'll move my Vue console to somewhere else in the home that is better for me and put my WLIP up for sale on Ebay. Hopefully Davis adds a bunch of neat features to this in the form of an API etc. but I'm happy just to have a simple wireless solution that isn't tied to my console and is the future of Davis 1st party development.