One of the most common misconceptions about language lab software is that its value depends entirely on how well it is assigned and managed by a teacher. This is partly true effective teacher integration makes language labs significantly more productive. But it misses something important about how language lab software actually works at its best.
The students who gain the most from language labs are often not the ones doing exactly what they were assigned. They are the ones who have started using the lab independently replaying exercises they found difficult, recording speaking attempts beyond what the task required, exploring vocabulary modules on their own time. The students who discover the language lab as a personal practice tool are the students who improve fastest.