Redshift is :
Fast like Ferrari
Cheap like a Ford Fiesta
Useful like a Minivan
Self Driving Auto-magics like Tesla with Autopilot
Key features:
Really fancy features under-the-hood:
-interleaved sort keys
-columnar distributed storage
-smart parallel execution
-IO optimization (return results fast)
-Easy to add nodes and scalable
-Shared nothing architecture
-Less need for dbas, monitor and use in AWS console
Caveats:
-Amazon Cloud only
-Requirements of S3 dependability
-Only useful for very very large datasets
-A limited number concurrent queries
Data Ninjaeering 