This is a modest place--no gimmicks or pretensions--that delivers the basic range at a fair price. Their sweets are particularly well done and available in smaller portions (and at a price that reflects this).
I'm not sure where the grumbles about cleanliness come from. I'm in here every other day and I have always found the place clean and well-maintained, with customer drops and spills attended to in a flash. If every MacDonalds were as well taken care of, you might actually find me woofing down the odd Big Mac (although not likely).
For enviropurists, I should add that years ago, I got myself a segmented bento box at Tai Phong hardware and always use it for my lunches. Ding Dong is quite patient and gracious about this little idiosyncrasy of mine, even searching the kitchen for the right size of elastic band for me once when my own had just given out through use. I ride a bike and my ubiquitous knapsack, with its permanently resident bento and water bottle, have probably averted a warehouse full of garbage over the years. It's our own personal duty to clean things up--kvetching about the others will never get anything done.