What is a monolithic capacitor, mica capacitor?
The advantage of monolithic capacitor is capacity, cheap, ESL low, generally suitable for filtering, but the capacity stability is poor;
What kind of good, this can not be generalized, because the two capacitors each have different uses and features, should not be directly compared.
Mica capacitance capacity is relatively small, expensive, good temperature stability, suitable for small capacity and high stability requirements.