How are you familiar with Device Selector? (Poll Closed)

• It's very intuitive. I knew how to use it from the first try and I cannot live without it.
  4%
   
• It took me some time to understand it and now I cannot imagine my work without it.
  15%
   
• I know what it is good for but I use it only occasionally.
  9%
   
• I was experimenting with it but I didn't find for what it is useful.
  9%
   
• I don't use it.
  11%
   
• I don't know what Device Selector is.
  52%