When I first got a 27 inch, yes, it was too big. In fact, it gave me neck strain, back ache, and a horrible headache that made me throw up. This was no good because I have to work on it. Well, I figured out this was more an issue of the height of the screen than its size. I had to look up at it all the time and that put a strain on my neck. So, my solution was to get a monitor arm and a VESA adapter. That allows me to lower the monitor so the bottom edge is almost touching the desk, and I will be looking down at the screen work area rather than look up at it. Now I can work on my Mac comfortably with no physical problem at all.