Pyspark provides many advantages, a few of them are:-

Pyspark is relatively easy to learn and implement as compared to spark in other languages.

Pyspark provides a simple and comprehensive API to interact with spark.

Pyspark codes are easy to read, maintain and understand.

Pyspark provides multiple options for data visualisation, which is difficult using Scala/java. 

In comparison to Scala, pyspark has many available libraries.