Sketchfab is an online way to share 3D model and AR projects.
The pros are you have a lot of control over how the model shows up. In the editing phase of the upload process, you can control the animation playback, the environment lighting, subsurfacing, and scaling of the model.
The cons are since there are free to paid levels. There are limitations when using the AR version. Like Adobe Aero, to view the AR version of the models, a person has to have the Sketchfab application. If you have the paid version, you are able to provide a link that can be opened within a web browser straight into the AR version. There are also limits to the size of the upload and how many AR models you create per month under the free version.