Low power and heavy due to the built on starter. But they start super easily and run well enough to fly a model. Not the sort you want to put into anything needing high performance. But for a casual sport flying model with moderate performance? I lovely little mill for that sort of thing. I've got two of them. Haven't used either in years but I won't get rid of them due to the nice memories of the models that did use them. That and my plan to make a Veco Dakota bipe for free flight flying at the big meets down in Oregon in their time target Dakota event.
Warning. Be sure the lower radial lug is still intact. I managed to snap one off and it broke away in a manner that resulted in a case leak due to the broken away part having part of the rear cover's gasket seat. I ended up using silicon gasket glue instead of the paper gasket. But it's annoying and means that if I have to remove the cover it needs to be fully cleaned and re-glued.