4.5 stars but I'll raise it to 5. I was pleasantly surprised by this Residence Inn. While the ones…read morein the States aren't terrible, this one in Munich generally surpassed those in the US.
I stayed in a "superior" studio. The accommodations was roomy and had a small kitchen that I did not take advantage of (save for the utensils and the mini-fridge). Overall, the room was very clean and tidy. The bathroom was fine, with a nicely-sized shower that felt like it was first built in the 90's, but maintained and operated decently (good water temperature and pressure). Although there was no drinking water in the room or floor, you were given a carafe to get water downstairs in the lobby.
The hotel is directly connected to Courtyard by Marriott - easy to confuse both places. The reason why the line at the concierge desk was longer was because of all the silly Courtyard guests confusing this hotel with theirs. Anyway, the concierge staff was friendly and efficient. The lobby is small but decently maintained. There's a play room for the kids too. The only issue I had was that the concierge desk closed in the evenings and if you needed assistance, you'd have to go next door to the Courtyard desk. I can see the efficiency in that but the optics...
What bumped this up to a 5 was breakfast. I wasn't expecting much, but the breakfast blows away any Residence Inn breakfast in the US. Buffet breakfast included a wide variety of hot breakfast options such as sausage, ham, bacon, scrambled eggs, fried eggs, potato rosti, pancakes, etc. You could also choose from a variety of breads and baked goods, along with fruit, yogurt and cold cuts. The operating hours for breakfast were extensive as well, as I went as early as 6:15 am and as late as 10 am. Breakfast was included for Residence Inn guests, but if you wanted in as a Courtyard guest, you'd have to pay a pretty sizable fee (30 Euros, maybe?).
The hotel is walking distance from the Munich East train station (Ostbahnhof) and is situation at the edge of a nice residential area with restaurants, bakeries, shops, and bars. If you don't want to stay in the Altstadt, this area, and this hotel, are good options.