Is espruino the right solution for my project? (Needs wifi - I've never soldered)

You will have fun with the Espruino-Wifi boards... you can run them from a USB power bank - the things you use to give more talk time to your cell phone. Adding the buttons is easy too: just connect the one side of the push button to an input pin and the other one to ground. The input pin you configure to use the internal pull-up resistor. You are obviously familiar w/ js... which makes getting the software going quickly.

Questions I have are:

• How quickly after the pressing of the button has the node.js server to get the post (or get request)?
  
• How often are these buttons pressed? ...one and the other?
  
• Is Twilio doing a push-notification? ...or do you think about pulling? (Espruino-Wifi has two LEDs - green and red - that could indicate the state of each of the variables: steady: on, blinking: off... if they are booleans)