I like that there's an option available with this app if you don't want your customer being able to see what they're ordering (which we use).
It works great! Their tech support team are super helpful as well which makes it even better!! There isn't any bad thing i can say about puborder so far but other then that everything seems fine :) The only downside would be having more features or options of choosing payment methods because right now all of those seem ok. We used it when our bartender was not around since he could also take orders through his phone while out at work during peak hours etc..