This product from DXRacer is a great all-rounder. I wouldn't hesitate to recommend it.

The wheels don't make any noise and so far don't scratch the floor. The headrest and backrest can be adjusted to the height you want, which is very useful if you spend a lot of time sitting in the chair.

As someone who spends a lot of time sitting and designing, I can't recommend this company enough to anyone looking for a new chair. My old cheap chair was wrecking my back, even when I tried to maintain good posture. I ended up sitting in awkward positions just to feel comfortable. I never realized how much a firmer chair could make a difference. A friend recommended this brand, and after using my chair for over a year now, I can't imagine going back.