Ergonomics above all! The tool is really well designed. I used to work on my sequences in a spreadsheet, but I always had formula issues with timing... and when I needed to switch sequences around, it wasn't practical. In short, I gained fluidity and ease of use with Modulo. It clearly saved me time to better focus on the workshop content and design (rather than formatting my sequence). I also love the aesthetics and the fact that it's colorful. And that matters a lot to me. And then Arthur Schmitt's recent developments (particularly the text formatting of sequences) really pleased me and helped in preparing my sequences (to highlight elements of the flow), and he's very attentive to the user community! Honestly, it's a great tool. I regularly recommend it to my contacts who are trainers, teachers, facilitators...