Always been a fan of WiKi,keep on keeping on.

Good looks and a nice font, but in a table the font color stays black, which makes it impossible to read because of the black background.

The updated view is difficult to navigate, uses blurry images as backgrounds, and doesn't support navigating through talk pages for editors. The way it's designed is for readability without integrating other functionalities as it doesn't use CSS themes but rather a URL with back-end to process Wikipedia articles - which may contribute to lag.

長年お世話になりましたが、オリジナルWikipediaの使い勝手向上とWikiwandの使いにくい進化のために利用を中止しました。
使い始めた当時、サイドバー式の固定された目次に最も価値を感じていましたが、現在はやや使いにくいもののオリジナルにも搭載されました。

無意味なフローティング効果、広い空白などの見づらいデザインになった事もマイナスですが、Ctrl+クリックで新しいタブでリンクを開けなくなった事は致命的でした。
尚、元々IMEを使用して入力する言語はしっかりとサポートしておらず、検索フォームが上手く動作しない問題を抱えていて、これは改善されていません。

This add-on enhances the Wikipedia experience with an improved visual interface. Once I started using it, I realize that it's the only way to fully appreciate Wikipedia and what it has to offer

Wikiwand's styling is great, but I wish they were more transparent about the data they collect from users. Additionally, ctrl+click constantly breaks and opens links in the same tab, which is infuriating. I wish that basic functionality like this worked consistently.