of the "ultralight" aircraft in a training environment, the Tecnam, and sportstar are proving a little on the light side, but the Jabiru series are proving to be pretty much indestructible!
i remeber posting here some years ago, that our school operated a Jabiru, and the response was quite large, telling me th aircraft is a weak Ultralight and it wouldn't last, well, its now been in ab initio service now for well over 6000 hrs, and rapidly approaching its 10,000th hour, and it still flies as fast and as well as the day it was built.
I have seen Tecnams and Liberties have hard landings and require a truck to remove them from the runway, but the little Jabs are as reliable as the old Cessna 150's and 152 in the training environment.
im sure the price of a Liberty could have purchased 2 Jabiru J230s, with glass cockpits, and have a much lower maint and running costs. not to mention locally built.