My main use cases for Red Hat Enterprise Linux (RHEL) are mostly development at first, and then after that, it's actually running full production loads on it.

Red Hat Enterprise Linux for SAP with HA and Update Services 9.0
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Product has been great for our company and customers
Easy to use, and very stable with satellite
product evaluation
Strong security features and reliable performance increase deployment confidence
What is our primary use case?
What is most valuable?
One of the nice pain points that Red Hat Enterprise Linux (RHEL) addresses compared to other distributions is the polished applications within it.
Their repository tends to be more foolproof. The SELinux feature in RHEL is pretty strong.
SELinux is not something that I was ever using before in the open source community, and it was very confusing at first; however, after a while, it made sense why that layer exists. The SELinux feature and other features of RHEL benefit my company by allowing us to lock in the server more traditionally than we would be able to with special permissions.
It's about getting very granular versus just putting an umbrella on some things, and security-wise, it's very effective.
The security features of Red Hat Enterprise Linux (RHEL), including SELinux and its features, make it easier to be aware of compromises.
The Insights tool is very good at providing CVEs to alert us about vulnerabilities quickly. I can't quantify the impact in percentage terms since I haven't faced specific situations. However, the outlook compared to other distributions looks good.
What needs improvement?
To improve Red Hat Enterprise Linux (RHEL), it would be helpful to have a step-by-step process to make setup easier. Cockpit needs more features to manage complex tasks such as RAID configurations, as most of that is reserved for the command line.
For how long have I used the solution?
I have been using Red Hat Enterprise Linux (RHEL) for about a year and a half.
What do I think about the stability of the solution?
I find Red Hat Enterprise Linux (RHEL) to be super stable and super reliable.
What do I think about the scalability of the solution?
I have not scaled Red Hat Enterprise Linux (RHEL) outside of using templates and cloning features. I haven't scaled it out with OpenShift yet; it's something I want to explore, as I now understand what tools OpenShift can offer to scale out RHEL machines effectively.
How are customer service and support?
My experience with customer service and technical support for Red Hat Enterprise Linux (RHEL) is mixed. On a professional level, they are very responsive, which is part of the contract, but on a personal level, responses can take forever, and I often get pointed to community posts.
How would you rate customer service and support?
Positive
Which solution did I use previously and why did I switch?
We did not consider any other OS solutions while using Red Hat Enterprise Linux (RHEL), although there have been discussions about using Ubuntu. I don't think it will go that way because we are very satisfied with what RHEL offers overall.
What was our ROI?
The biggest return on investment with Red Hat Enterprise Linux (RHEL) is that every time I put an application or tool in there, it's going to work. I don't have to second-guess it or go back; I know it will be a polished application.
What's my experience with pricing, setup cost, and licensing?
Regarding the experience with pricing, setup costs, and licensing for Red Hat Enterprise Linux (RHEL), I would say it's beyond my pay grade. That said, it's not cheap at all. While it could always be cheaper, they provide substantial value for the money, and they consistently introduce new features that add value.
What other advice do I have?
I would rate Red Hat Enterprise Linux (RHEL) as a ten out of ten overall.
It's a great OS that has grown on me over time, and the more I use it, the more I understand its value and why it costs what it does.