I have a guest bedroom full of Ikea, bed, desk, chair, dresser. We also have a home study full of Ikea office furniture. Everything is sturdy and looks great but the quality of the dresser is really bad. The dresser drawers couldn't handle a heavy load, the bottom would break right out.
I REALLY like their office furniture. The desks offer so many shapes/combinations, leg styles and colors that it's easy to fit your room and style. And, the desks are pretty sturdy. We also have a large file cabinet that I like. It's always held a lot of stuff and never gave out, drawers still roll smoothly, etc.