By cons for mounting I have sweated. First you will need a wrench 13 and 17, and a punch and a forest of 12. Everyone does not necessarily this in his toolbox, you just know.
Then be sure to attach the two brackets FIRST and THEN the ceiling to the bar supports. Do not try to do the opposite, like me, you'll just lose 1 hour more.
Another thing: while drilling, I came across in my scrap ceiling (which is likely to happen to you too) and there is death to pierce. I managed sawing ankle so she gets to level, but frankly it was not a foregone conclusion. In short, it's another thing to mount an Ikea furniture.