Carlos,
What they might like to see in addition to reports is types of devices/OS connecting and they can get a "live" picture from the dashboard (see dashboard.png) (configurable)
I will stick with AMP 7.6.4+ as not all features for IAPs are incorporated yet in AMP 7.7 (in case you want to demo with IAPs)
As Rob mentioned, RF Performance tab but also include the Diagnostics section of a particular client which will the show network path for that user and any issues that are currently being observed such as device down, high noise, etc.
One report we include for our customers who do not have an RFProtect license but want some rogue detection information which they get daily and they are happy with is the following custom report (see rogue_report.png). We run that report everyday and is mailed out in PDF form to them directly.
Customized client session report showing connection/disconnection information along with SNR and goodput can serve very well for end customers.
As for triggers, we've really customized our triggers based on timelines for when devices go down.
Example: Tell me when a device has been down for at least 15 min within the last 30 min with 1 down event.
Triggers even based off authentication failures, specific IDS events or controller events such as when an AP changes from 1 controller to another.
In AMP 7.7 comes automatic acknowledgment of alerts which is huge if you are performing managed services for a client.
Like Rob said, get some requirements from the customer and this will definitely help you demo Airwave to them where they will want it 100%.
Hope this helps....
Pasquale