Have you tried to do it yourself? They give good instructions. I'm an idiot with handy stuff around the house but can easily build ikea stuff.
people can easily put it together. I've done some of those -- however people who regularly build ikea items can align the corners better and more professionally.
It makes the appearance look more real. Also, when done right, the drawers will come in and out smoother over the long term, and the whole process is quicker, too.
For people who earn $75+ an hour at work, it's preferable to pay someone $35/hr to put together the furniture. Esp if it takes the experienced person 2 hours and the furniture owner 5 hours.