* Include the table number in the code!
* Include any weekend/public holiday/service/surcharge in the prices! It makes sense not to print a new menu for 1 day a week, but this is digital and already implemented in your system!
* Don't forcefully 'suggest' a tip before service has been delivered! (in places where tips aren't customary/required).
* For fast food/take out places, include back-pressure in your ordering/time estimates. If there are 20 orders queued with one cook, don't give an estimate of 5 minutes!
* Ordering in your own time is amazing!
* Pictures are great!
* Being able to instantly remove "out of stock" items, perfect!
* Bill splitting "by default" is useful!