Touring Motorgliders for Club Use and Instruction

In another thread, Garret Willat just wrote:
Even in our Stemme I cover the flight computer for the student and make them learn to read a map...
Since Garret seems to use this motorglider for instruction, I have a couple of questions for him and anyone who feels qualified to chime in. Our club is considering the acquisition of a Phoenix or similar touring motorglider for club operations.
The obvious advantages would be intense student training without the need for a tow pilot while covering all glider operations except for flying the tow. XC and thermaling training would be possible even in poor weather using the engine throttled back to simulate thermals. These LSA certified motorgliders can be operated with a glider-only license and a proper self-launch endorsement in the logbook. I would envision quite extensive use by our qualified club pilots during the week, during morning and late afternoon hours leaving a lot of time to fly with students.
Is this realistic? Do these airplanes hold up in a club environment? The Rotax 912 most use is now quite a proven powerplant and besides the feathering prop there are no complex systems to be considered (as would be necessary for retractable engines or even the Stemme).
Herb