Considering replacing Wattbike Atom with Kickr Bike - am I wasting my money?

KICKR BIKE SHIFT is pretty good.
It has built in Wi-Fi.
To do the wired Ethernet, you’d need the DIRCON adapter.
You won’t get gear display in Zwift. That’s not enabled yet. But, if you have a Wahoo head unit, and pair to the SHIFT over Bluetooth, you can get gear display on the head unit.
There is also a thread here to use a LILYGO TTGO T-Display to intercept the Bluetooth gear information.