@throwaway9500
Assembled means the esp8266 and all the other electronic parts are soldered onto the PCB, and ends of the wiring are together and ready for service. DIY is you assemble everything, but I think you understand that part.
Either option will require you to install the servo into each blind, insert the control case into the blind casing, and route the wires.
The +2 Servos means you can control 3 blinds with one controller, and that +2 option is available in DIY or Assembled. If you purchase the +2 servo option, you are not required to connect all 3 servos to the same controller, you can mix and match to your controller(s). However, 3 servos is Matt’s recommended limit per controller, due to voltage drop during operation. I purchased various shaft shapes of DIY single and +2 quantities, since not all my blinds were the same shaft type, and I connected mostly 2 servos per controller.
The blinds shaft/rod shape is the horizontal shaft inside the blind casing that the servo attaches to and rotates to tilt the blinds. There are various shapes, you’ll need to look inside your blind casings and see what shape you need to order. Be sure you know what every blind shaft shape is, unless they were all purchased at the same time.
Since you do not want to solder, you should choose the 2nd OR 4th options: “Assembled (+$15.00)” OR “Assembled + 2 Servos & Parts (+$41.00)” in whatever quantities you can make it work with your 22 blinds.