As an overall, the implementation idea is so good. Having integration with open source tools such as diagrams.net/draw.io is my favorite part. I think, the product has potential to be one of the most used tools in the field. However, you guys, should have a clear and transparent roadmap to get feedback constantly from the community.
I had tested other competitors tools and I think they have some good things, but this one can be developed with more interesting features. If i have to decide which features are the best currently, they could be open source based project, live monitoring capabilities and agnostic integration to cloud providers. The things I identified you should work on (from my very own opinion) are product QA (some simple issues that could be a UX trouble), transparency about offering, capabilities and roadmap, and include more services and network configurations to discover and represent into the diagrams (e.g. vnet peerings, databricks workspaces, and so on.)
Some intersting features that I wish to see soon are team tier, more services representations into diagrams, and may be, api or analytics module.
Good luck.