I've just tried Zepel out by importing my current project off Trello (loved that this feature was available) so here's some things that threw me off: - I'd like an easy way to move multiple cards from one board list into another cause I can't multi-select or drag-select. Organising a freshly imported project is a hassle without this. - When creating a new feature I couldn't find a way to drag existing tasks/cards into it but as far as I could see I'd have to create new ones. - I would expect tags to auto-complete when adding them to a card but it didn't seem to work.
Generally it seems to work well if one is populating a new project from scratch but cleaning up an imported project would require a little more thought and additional features cause the barrier to entry for users of existing products seems rather high.
Keep up the good work!