Their ASR model is Conformer trained on 1.1M hours, so the result should be better than Whisper.
From their pricing page, with ~ length of a meeting, input size 15000 tokens (60 minutes audio file), output size 2000 tokens (1500 words), LeMUR default, the price estimate is $0.353, which is I think a fairly good price.
This tool can save a lot of time for a secretary, even replace them. But I think sending your meeting data is still quite risky.