Spark 2.0 is praised for its versatility and user-friendly design, making it a strong choice for both individual and team email management. Users appreciate its cross-platform compatibility and smart inbox feature, which prioritizes emails effectively. Team collaboration is enhanced with shared inboxes and private discussions. However, some users express concerns over privacy and limited customization options. While the interface is generally well-received, a few users find the new layout less intuitive. Despite some technical issues, many consider it a top email client.