Never had an issue and it's one of the nicest looking extensions I've used

AdGuard Browser Assistant
Often when opening the web page can not start or start slowly,AdGuard is launching... and connecting to local.adguard.org......
插件使用中经常出现无法启动导致网页打不开的情况

Nice Browser Assistant, saves time..

I am SUPER HAPPY AND VERY GRATEFUL that I found ADGUARD, in fact THESE people/company were THE ONLY ONE who took me serious when I send a cry for help after a professional hacker took my ID, stole my weekly money from PayPal and tried to destroy everything on my Phone (and desktop). The same evening they send me the correct link to install the protection that I needed to keep him away ! Now still the same for my desktop and I will feel free and without worries again and that after exact 3 months !!! THANK YOU SO VERY MUCH ADGUARD !!!

Life changing, purchased lifetime membership.