Capabilities of Assets Core Services

Hello,

I could upload assets using the cloud assets core service, but i have questionS on its capability? I referred to https://docs.adobe.com/content/help/en/core-services/interface/assets/experience-cloud-assets.html
1. I wanted to share assets between aem and assets core service, what is the best way to go about it. I find no much information in the documentation where Asset Sharing with Experience Manager is empty
https://docs.adobe.com/content/help/en/core-services/interface/assets/experience-cloud-assets.html#s...
2. Is the assets core service capable of sharing assets only with Creative Cloud? Please let me know if this is capable of sharing/integrating with Adobe campaign, and AEM
3. What is the storage capacity for the assets in the assets core service?