Yes, this is purely subjective but consider myself lucky to be able to fly an RPT 60 seater turboprop as an F/O, and also instruct ab-initio students at our airline's flight school in a C172. One week, I could be doing circuits with pre-solo students; the next week conducting a VOR/DME or ILS approach down to minima with a full load of passengers down the back. It's the best of both worlds and adds variety to the type of flying I do during the month. I don't think this type of operation happens a lot around the world, but here in Indonesia, it's the norm for airline owned flight schools to call upon line pilots to instuct at their flight school as well.