Its not the first time that weve stayed in a One Motel but the first time here. It's pretty well situated, although Hamburg isn't a massive city and easily walkable and has excellent transport.
As you might expect from the street name, it's close to the river and a brisk 5 minute walk gets you onto the promenade with all the tourist and ferry boats.
If I had any niggles it would be that, as it was my partner's birthday, I'd book a balcony room. This had a niceish view, but for the extra 25€ a night Id have expected a larger room too. In fact, the standard room that we had stayed in previously was larger.
I think that the 21€ per night in the underground car park was also a bit steep!
Staff were all extremely helpful and the bar area huge and relaxing. We didnt have breakfast so cant comment on that.
We'd probably wouldn't mind staying again, although iI think we'd look more closely at room sizes versus price at other nearby hotels first.
We can certainly recommend Motel One though.