Generally pretty good. I am a PC, Mac, and iPhone user. The PC version works pretty flawlessly, and because of a darkweb breach flagged up by the scanner I've been tinkering with it for most of the day. The iPhone version works mostly pretty well except it doesn't seem to like producing strong passwords which is annoying and means if you sign up to anything new, you're best off doing it on your normal computer. And the Mac version is a bit messy. I just updated the app and now it's stopped autofilling at all. There appears to be no option. No idea what's going on which is a pain because I've just changed 90-odd passwords. Have written to the support guys about it. Overall the system works very well and I like Nord as a company. Having just come out of the ludicrous shower that is LastPass, who flat-out refuse to give me a refund even though I paid two years up front and they've supposedly lost all my data within weeks of me signing up. At least I am confident that Nord won't do anything like that.