it's very useful
Heimdall helped us to utilize our RDS read replica, caching the queries. have full control of our DB tables in terms of caching balancing....
I highly recommend it for any system facing downtime or DB performance issues.
Heimdall has helped us dramatically reduce our RDS usage. By effectively caching routine queries and results, we were able to reduce our average RDS bill by almost a half, while improving overall application performance. To top this off, their leadership and team have been involved with us at every step. Heimdall has and continues to pay for itself.