The idea is good, but execution could be better. Sometimes it opens a new tab, sometimes it replaces the current tab.

Fabulous! It's just so quick and useful--one of my most used add-ons.

Amazing extension! Wish I could open options in a new tab instead of the current one though. Nonetheless extremely useful.

THIS ADD-ON provides no simple instructions for how to use from the browser. WHAT DOES IT EVEN DO? Usually you click on an icon and in this case, you would think "OMNI" would sort bookmarks or even show me my bookmarks, but it does nothing. If I wanted to be a programmer just to organize my bookmarks, I probably wouldn't need an extension like this. The fact that it redirects to the github site is not a good sign for me. I just want a reasonably intuitive way of getting the extension to work. Is that really that difficult for these developers who can't seem to understand their users.

Crashes alot... Poorest performance

EDIT:

This is the best of the best in this category of apps by far in terms of UI.

Performance suffers with a large number of tabs (hundreds of tabs)

Search isn't "fuzzy" or smart, it searches only for exact strings (see TabSearch extension or Vivaldi's built-in search for contrast)

Ctrl+A -> backspace often doesnt backspace anything and just goes to the start of your text. However, I've seen this bug in several other extensions of this type, which leads me to believe it's a browser bug.

Awesome effort