This tool looks nice but it has some issues.
Every item in a collection only shows one line of text. Not matter how long it is. If it doesn't fit, the text gets cut off and I can't find a way to see it. Except when editing it, but that's not very convenient.
It seems like you can't change the order of collections. That would be really helpful.
You can only have one Project/Database. There is no easy way to switch to another project like... loading another file. Using one collection per project gets pretty messy over time.
So, it's not bad, but I can't really use it. But I will check it out later. Maybe this improves on some of this things in the future.