What I found most helpful about QRcodestack is being able to change where a QR code leads without having to generate a new code. I've used it for flyers and other printed materials. It's been useful when a website link or other info needs to be updated.

I also like that the scans don't come with unwanted ads. The tracking information is also another useful feature so I can see how many people scan the codes I make Review collected by and hosted on G2.com.

Not much downsides about it. It just took some time learning how to use the tool and I think there are some features that feel a bit unnecessary if all you need to do is generate simple QR codes. Review collected by and hosted on G2.com.