-Thick skin
-Hard to peel
-Little gritty
-Not super sweet
-Only minor disease issues in over 40 years observing
-Usually has some fruit escape early cold weather.
-Not super sweet but picked at the right time it gets sweet enough
-Early to start fruiting
-Good for making pear preserves
Very accurate description. I have a dozen trees each of this class of pears orient, improved kieffer, and kieffer. I experiment with other southern pears and even grow a branch of ts hardy. We will never starve with those planted.