What I like most about Apache Arrow is how efficiently it handles large datasets in memory. It provides a fast, columnar data format that improves performance when moving data between different systems. In our projects, we’ve used it to connect Python, R, and Java applications with minimal overhead. The interoperability it offers is excellent, and the community support is very active. Review collected by and hosted on G2.com.

The initial learning curve can be steep, especially when configuring integrations with other data tools. Some documentation could be clearer for new users, particularly around advanced topics like zero-copy reads and memory mapping. Debugging cross-language performance issues also takes some technical expertise. Review collected by and hosted on G2.com.