I’ve used it on iOS and iPadOS. It’s not bad and I didn’t find that it breaks too many sites, but the plugin support can be a bit buggy. Specifically I tried to install Ublock Origin (as one does) but I got some errors and the plugin didn’t work. That being said it’s built in adblocker is usually good enough. Overall I give it a 6/10, but if they update it so I can put Ublock origin on it I’ll probably switch over to it in an instant.