After watching this year's UC Plenary and seeing the announcement of the Data Explorer Instant App, I immediately started experimenting with it.
One enhancement I would love to see is support for floor-aware maps within the app.
The ability to ask natural language questions about your data is a fantastic capability, and extending that experience to indoor maps would make it even more valuable. It would allow users to easily explore, understand, and analyze indoor spaces without needing extensive GIS knowledge, making the app much more accessible for clients and other non-GIS users.