Todoist extension is just fine and does most things you need for managing todoist tasks.
I have to say that it is not terribly useful, mostly because also todoist web site works very well.

Very clean and organized interface, which is good considering it's an organization add-on. Well-made and useful. Thanks!

good,it's so comfortable.

Useful

It shows me the badge count of tasks I have, but when I click on it, 90% of the time I just get a blank window pop up.

Works as expected if you are already familiar with todoist. It's not slow like some similar extensions.

The best

Full todoist functionality right inside of your browser. Works well...

Very useful to be more productive

Syncs smoothly. Ability to use to do list in desktop and mobile makes it a must have

Nice beautiful app, would have rated 5stars if the remainder feature was free

Rather than separate Tasks/To Dos I would prefer it was just a single Rich text (or plain text) page with multiple lines (like a page in Wordpad)
Perhaps you could allow multiple pages OR perhaps allow any one of your current To Do's to expand to the Wordpad'ish page i mentioned (But I can live with just one long page)
Rob