Staff are friendly and helpful. I don't see this sort of smiling, professional customer service catching on in Austria but you have to admire the Fresco for trying it.
The food is generally good and is made with fresh ingredients, but as someone says below they have no hot salsas ("scharf" is just a scattering of watery jalapeno slices) and the meat is not very spicy. If you like your burritos to cause fiery colon damage then these might be a bit disappointing. If you ask for rice then most of the burrito ends up stuffed with it so avoid that.
The beer is pricey - 3.80 for a wee bottle of Corona is just cheeky. Better to buy a couple of burritos as a takeaway, and take them to Freud Park with a 6-pack of cold ones from the Spar down the road.