PMThings Gantt Chart

Hello everyone, I am building an online Gantt Chart tool. I made it available for public for free and I would like to request a feedback. Current version provides an editor which allows to build a Gantt Chart using three types of tasks (Task/Project/Milestone), manage connections between tasks, resize the chart, export task list to CSV and import from CSV. I have further plans to improve this tool such as to implement user account registration, nested tasks, drag-n-drop of tasks, release standalone app and redesign chart display. Feedback of the community would be really helpful for planning of the roadmap of the product. Existing functionality will remain free, same as new features for small teams. Thank you!