One dataset shared on Dandi: https://gui.dandiarchive.org/#/dandiset/5eaa216d1fe11561ec13e9ed
Can be viewed with links like:
https://nwbexplorer.opensourcebrain.org/nwbfile=https://girder.dandiarchive.org/api/v1/item/5eaa26191fe11561ec13e9fe/download

Can also be used with NWB Widgets:

@bendichter is there an example of an Allen dataset with the more complex unit/spiking info, as you were showing in NWBWidgets yesterday?