It's very buggy.
When the chat is above the title you can only move it sometimes while the stream is loading (also the overlay moves slower than your cursor, which often cancels the movement). Another time the resizing didn't work because the overlay was cropped halfway or the toggle button displayed twice. There are massive lags when you go in fullscreen due to the chat loading.

Great! But, hard to move and gets stuck. Use the resizer to make the overlay as small as possible to reset its position.

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Cool addon to have but a pain in the ass to move the chat overlay when full screen

フルスクリーンで一番上に持っていくと移動できなくなります。

Je ne vois pas le chat dans mon jeu! Faut-il un overlay spécial avec?

Very good add-on works well but it would be cool if it also work with vods not just live.

"I didn't know I need it" addon. Looks and works great. I wish it would also work in VODs though

Works great! FFZ and BTTV works with it. I only wish you would be able to make the window fully transparent.

Works smooth, didn't have any issues so far. Good job!