I definitely recommend the Am Siegestor. Keeping in mind that this is a reasonably cheap guest house, it was a lovely place to stay. Its best feature is the wonderfully warm welcome you will receive from the host Monika; after staying in impersonal hotels and hostels, it is so refreshing to feel looked after and at home. The location of the guesthouse is also a definite plus. It is right by the Englischer Garten which is great for any number of outdoor activities. Also, there are plenty of nearby restaurants and bars in the surrounding streets. Don't be concerned about not being right in the city centre, it is a short 10 minute walk or two stops on the underground (the guesthouse is right around the corner from the Universitat station which takes you directly to Marienplatz, giving you access to the Hauptbahnhof and from there, long distance and regional trains). The room was clean and comfortable, the television worked, and the free wifi had good and reliable signal. Breakfast, included in the roomrate, was typical guesthouse fare (bread, ham, cheese, condiments, cereal, boiled eggs) but there was a wide selection and it was of good quality. I really enjoyed the Am Siegestor and I have no hesitation in recommending this hotel.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.