What I like the best is the availability of open-source free software components bundled with the openness of Linux at the bottom of it. Openstack gives you the power to customize the underlying infrastructure as per your needs. From SRIOV to DPDK, from vHOST to NUMA awareness & hugepages, it supports everything & gives you the flexibility to develop an infrastructure that is ready for network-intensive & resource-intensive (CPU & RAM) applications. In addition to that, you can leverage Kubernetes as a manager for all your containerized workloads either on Baremetal or on top of Openstack

The ELK/EFK stack and the Loki project are comparable, but Loki is easier to set up, operate, and has more features.

The best thing that I like about Loki is the ease of use and how easy it is to ramp up the team