Here are a few ways to make a case example real:
- Focus on one specific benefit, if you try to put your entire story in the mouth of your customer, you need 30 slides, not one
- Cut the fluff
- Be very specific, and very detailed, quantify if you can.
- Add an image of your client to make things more authentic.
Case studies can be more than a simple quote of text. If you want to show that your system can be installed within 6 weeks, why not show a bar chart of your last 10 customer installations, with the exact time it took to install the system?
Tell a real customer story.