I have had difficulty finding 2T size underwears in stores as most stock only 4T as their smallest size.
The 2T/3T here is rated for 25 to 32 lbs with a 20 to 20.5' waist, which is a little bigger than the Disney brand (21 to 26 lbs, 19.5' waist). If you have an early potty-user (my daughter is 14 months, 32 inches for 25 lbs), the size is ideal.

The cotton is nice and soft, not too thick and the finishing is well made and delicate (there is a little multi-colored ribbon at the waist that gives a nice girly detail).
I received a pack that differs from the one on the product description picture but it has 3 solid+ 3 prints also. The colors are a pretty mix of blues, mauves and whites.

I like these underwears better than the Disney brand for my little girl as the finishing is of obvious higher quality and the cotton is softer, especially as the Disney brand all-over printed undies feel very stiff, as if the pattern was an iron-on type.
In addition, no huge tag inside; the size and care instructions are printed on, on the contrary to Disney.
Finally, all 6 undies were the same size in the pack! (my 3 pack of Disney's had 2x 2T/3T and 1x 4T!!!).

If you need very small size underwears, I would recommend these as a good basic. I will update this review as they are getting through washes.

UPDATE 5/18/11: The underwears have been washed many times now and though the material is thin, they look good as new. I am happy!
UPDATE 9/28/2011: Still going strong! Only one that must have been worn more than the others is showing some age but no hole, no loose thread. I think I am going to need the size above before they get too old to use. You can't go wrong with these undies!