Most customers have heterogeneous environments. The main drawback of Cisco Catalyst Center is that it can only manage and monitor Cisco devices with a DNA license, specifically the Catalyst 9000 series. Customers often have mixed vendor environments, and platforms like Xtream offer vendor-agnostic solutions. While Cisco's DNA Center does have third-party SDKs that allow monitoring of non-Cisco devices, this approach isn't always practical. Additionally, Kumar mentioned the importance of segmentation, transitioning to SDA, and moving away from traditional VLANs and ACLs towards identity-based segmentation integrated with ISE. Therefore, it's more suitable for customers who primarily use Cisco solutions rather than those with diverse vendor environments.