Kitzbühel is relatively large by Austrian standards and feels more like a small town than a village, though it still has plenty of charm. It is especially popular with British visitors—one of its best-known pubs is even called the Londoner. The skiing itself is solid: most lifts are modern and well maintained, the infrastructure is reliable, and the slopes cater mainly to intermediates. Experts can still find a few more demanding runs, while beginners also have plenty of suitable options, although the easier pistes can become crowded.
Overall, I found the slopes good rather than outstanding. At the time, one drawback was the limited choice for snowboarders, although I imagine dedicated parks and features have since been added.
To sum up with, Kitzbühel is a large, well-organised, and popular ski resort with plenty to offer beyond the slopes. However, if you are looking for the atmosphere of a smaller, more traditional Austrian village, it may not be the ideal choice.