“The Pico-W was available immediately from Pi-Hut at a good price and with reasonable shipping costs (given that I'm on the other side of the planet). Dispatch (and notification) was prompt.
The Pico-W is a very nice little board and quite different from the Espressif series (ESP8266/ESP32).
Most of the available examples on the web are MicroPython based, so if you're looking for C/C++ examples and toolkit, I'd recommend cloning Earl F. Philhower's Arduino core from:-
https://github.com/earlephilhower/arduino-pico
...and using the pico-SDK from that package along with CMake to build your first programs. An excellent example is Lurk101's "pshell" from:-
https://github.com/lurk101/pshell
...which will give you a C-compiler and a shell-like environment (and filesystem) to experiment with your pico over the USB connection using a terminal program (minicom/screen).
Loading your compiled program onto the Pico-W is as simple as copying the "xxxx.uf2" file from your build directory to the /media/YOUR_USERNAME/RPI-RP2 directory.”
“As expected. Very happy with the purchase. Tested all the functions. No issues whatsoever. Very small board that fits well in any project. Dispatched quickly and received within a few days.”
“The Raspberry Pi universe keeps getting larger and better, and with the PicoW it adds connectivity to a very useful small platform. And the PiHut got one to me quickly. Not to mention great resources for putting it to use.”
“Reasonably priced for the functionality it offers. Raspberry Pi Pico W is a new Raspberry Pi product that adds WiFi capability to the Raspberry Pi Pico, allowing you to connect the device to a WiFi network.”