The review section is starting to look a little sad, so I thought I would try to add something. So let's go with the topic of Motel One.
I really like this Munich-based hotel chain. RS has won me over to trying to stay at charming, atmospheric, locally-owned inns and B&Bs, but for a quick visit to a city, Motel One has always provided a reliably great stay. I've spent at least one night at locations in London, Berlin, Vienna, Stuttgart, Bremen, and Leipzig.
The hotels have small, uniform rooms with limited space for luggage (so not for travelers who like to bring large bags), but the rooms do have some flare that make them feel stylish. Common areas on the ground floor are great -- full of atmosphere and often themed to the city. The bar serves limited food (snacks, not meals). The breakfast buffet has a nice diversity of offerings (at least pre-COVID-19) and is definitely very German in character (even in London).
The price is generally below 100 euro per night. I have always felt good about the Preis-Leistungsverhältnis (price-value ratio) after a stay. Finally, the hotel feels German, which is nice. I have stayed in US hotel chains in Europe 2-3 times; those always feel like I'm staying in a soulless US hotel. I like that the Motel One locations do not feel that way.