The room is large and comfortable. It’s no smoking (inside) and the noise levels are fairly low.
They give you the option of having linen tablecloth and napkins, bread and a spread (Gedeck, cover charge in English) or not. This is really a nice feature and makes the restaurant good for both formal and informal dining. You should specify which you want when you make a reservation (or come into the restaurant).
The service has been very good every time I have visited. The staff are nice, speak English and are helpful with menu choices. The menu itself has an English translation on the last page.
The food is excellent. Whether you want traditional dishes like Wiener Schnitzel or Tafelspitz, or more creative cooking. Their food comes from good sources, local and often organic. The bread is from Joseph Brot (a local bakery) and is fantastic. They have a changing menu and standards. Like many Viennese restaurants they have a daily lunch special including a main course and soup.
The wine list features many very good Austrian wines by the glass and bottle. This is a nice place to experience Austrian wines. They feature a rotating winery of the month. The beer is good (Eggenberger and Budweiser from Czech Republic).
We love to take visitors to the Glacis Beisl to taste excellent Austrian food at a reasonable price.