Similar in terms of features. I'd see the most meaningful advantage is the user experience, I find myself working significantly faster with Saggar. Beyond the UI, monitor & quick run windows, and rich command palette, I think the way Saggar orients your activity around your projects (e.g. a git repo) is really intuitive over the workspace model.
cool. I'll give it a go. the Companion app sounds like it could be a great way to control this, since my only option right now is directly to controlling only claude sessions.