@j_verlaine I'd suggest starting by looking for the reasonably regular webinars where you can get a free access point. This will then allow you to we for yourself how rich the information collected is, both in terms of diagnosis and usage.
If you can't find a suitable webinar then you can often trial equipment for a project.
We started down the Meraki route with a couple of wireless access points, then used MXs to create a wide area network and more recently have been replacing en of support Cisco IOS switches with Meraki ones.
The visibility and ease of use is fantastic!
