My first time was in October 2016. I came back with my parents last March (who have lots of dietary restrictions).. and it was as excellent as the year before, with the same decent price. We ate there every lunch and dinner for our whole stay in Bagan (5 days) simply cause I knew there is no other place that matches all the features of Wonderful tasty. Food is indeed amazing (whether you have dietary restrictions or not). I like eating not super processed food. You can hear them chopping everything just for your order (which does mean it takes at least 30'). (You can choose from raw salads, to curries to Nepali and western food. The lassi with fruits great when you r not too hungry)
But it's also the fact that is run by the owners, a hard working and lovely family. Your money finally goes to people who deserve it, and not to some wealthy guy who pays the minimum to their staff.
A great idea is to ask for the Babashe(don't remember the name, Momo's big sister) to take away so to have a bit more of Wonderful Tasty in your trip!
Don't hesitate to give it a shot! Totally worth it and portions are way more generous than what you r paying for.