We've had this camera for several months. Overall we are very happy with it. The main features that attracted us to this camera were its size, snappy response time (2 fps in a compact is great!), 5x zoom, image stabilization, and folded lens. It really has quite an attractive set of features that will be difficult to match. Picture quality is very good, but your satisfaction is really going to depend on what your expectations are.
With a camera of this size there are going to be limitations. Those limitations usually show up under more challenging shooting situations such as low light; especially low light with moving subjects. The T100 is no exception. The lower the light the more grainy the image will get. The small flash on these compact cameras is going to have a very limited range as well. The T100 performance in this area is very competitive, but not best in class.
Under Disney shooting conditions the T100 will do nicely during the day and the 5x zoom will be very useful. The movie mode is excellent as well. Indoors in large spaces will not be nearly as good and night shots will be difficult. The Animal Kingdom Safari will be difficult as well, since the camera will not have the zoom or the shutter speed to deal with that. In general, Disney has a variety of shooting conditions that challenges the best equipment and best photographers, so any compact camera will be at a disadvantage (although your back with thank you).
Personally, I use a DSLR and use the T100 only when I can't carry it. The T100 makes a great pocketable second camera, but it is not the ideal only camera for the reasons I mentioned. I know people who use it as their only camera and love it though.
I considered some other cameras as well:
The Fuji compact cameras such as the f31fd are renown for their low light ability. They have quite a following amongst serious photographers. I did not choose this, because it lacked image stabilization, has less zoom, was bigger, had an accordion lens (which I felt was more prone to damage), and felt generally more clunky.
I considered some of the Casios, which have up to a 7x zoom. However, some of the reviews made me nervous with respect to very poor low light performance. The T100 did much better (just not as good as the Fuji in this area).
I also looked at the Canons, which are also very good. However, I really liked that 5x zoom on the T100.
I looked at the Nikons, which I tend to favor, but their compacts these days were not up to the level of the T100.
So in the balance, the T100 had strengths and weaknesses that suited my particular needs well. It is a very good camera for its class and you will pay for that capability as well.