The difference between the companies (Rotax & Jabiru) attitude to failures, in my personal experience, is chalk & cheese. Rotax 912 with approx 1300 hours had problems, symptoms indicated crankcase fretting, called dealer/factory... "We thought we had solved that issue, please send the engine in and we will replace the crankcase free of charge, we would like to get to the bottom of this...".
Jabiru 3300 in factory built aircraft at 280 hours, meticulously maintained etc. en-route ran rough for 10sec then stopped dead, found a flat bit of ground and walked away. Aircraft sent back to factory for repair by insurance Co. before we got a good look at the engine. When we asked what happened we were given the run-around, then we were accused of "thrashing" the engine, then they "lost" the bits, and when we insisted it be sent back did they said we could have a new engine for free minus rebate for hours. We never found out what went wrong (I suspect it dropped a valve).
One company seems to want to improve reliability, one want to cover its behind, ones reputation seems to be growing, one seems to be getting worse....