Wide range of food, every week new 'weeklies', interesting serving and counter serving which makes it a bit cheaper than a restaurant. Personnel is very friendly and speaks English. In summer you can use the terrace, which is amazing!
Alexandrplatz is not known for gastronomy, mostly restaurants and cafes are very average here. Kantine Deluxe stands out. It's a great spot for lunch - a'la carte there is a set of courses that are always here, and every day there are new specials which makes a great assortment. You can come every day. Some of the courses are a bit too rude and fast-foody, hoverer general quality is very high
You need to order at a counter and then pick up your food, still, there is a table service, which is friendly and multi-lingual. Rush hours are not perfectly planned tho, you might wait
Atmosphere is somewhere between fast food and a cafe, you see how your food is cooked, and you can chill a bit while waiting. Special credits for the summer terrace
Tables are always clean, that's the general impression for the whole KD.
It's a great place to have lunch
If consider that you need to order and pick up food at the counter - a bit expensive, still for Alexanderplatz fair price. Lunch 8-12€