Easy to assemble. It literally clicks into the bottom piece.  I thought 9' was going to be too wide but it covers our seating perfectly.  Make sure you put it down in inclement weather.  I didn't ONE TIME and it became a sail. ;)   oops.  One weird thing is that the sticker on the hand crank has the "up" and "down" direction going the opposite way.  No biggie but it was confusing at first.