What Makes An Office Meet Higher Professional Standards?

I recently visited a few different office buildings while helping with a business setup, and I noticed that the overall experience can vary quite a lot between locations. While comparing International Standard offices jeddah, I started looking at building maintenance, meeting facilities, workspace design, accessibility, and everyday comfort. A modern appearance is useful, but reliable facilities and a practical layout seem more important once people start using the space regularly. For those with experience in well maintained office buildings, which feature do you think deserves the most attention before choosing one?