Simple and "easy" to use.
The 3rd party website containing the userstyles is awfully slow. (This didn't influence my rating)

user styus website does not work

Slowpoke... Takes about 5 minutes for it to understand that the ONLY style actually DOES exist. Until that it strongly believes that there is absolutely NO styles.

been using this a long time and it is such an excellent extension that, given its syntax highlighting, checking and auto-complete, can help one learn css in addition to applying it

and here i'm adding a 6th star just because of it perfect privacy policy...

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Great addon, but has it's limits. Also userstyles.org page works very poor, so getting styles is very hard.

It does the job.

I appreciate this addon however, where and how do people get styles now? The userstyles.org page has been completely effed up for a long time now, it's unbelieveably slow or it just doesn't load. I didn't know it was possible for a website to run that badly in 2020.
If anyone could reply, it would be greatly appreciated. I am not the best with computers but I at least figured out this addon.

I've been using this extension since the privacy problems caused by Stylish and I find it very good. I appreciate the editing capability and I started learning CSS by tinkering with the code.
The connection problems encountered on userstyles.org make me lower my score but Stylus is not responsible for this defect so 4 stars for them. Thank you for your work.

Since early 2020, sadly this extension seems to have been abandoned and is so slow it's 99.9% unusable. I used to love it and would've happily paid for it.