This hotel is very close to Frankfurt main station. Staff was very helpful. The rooms were large and the complimentary bar fridge was a pleasant surprise. The bed is very comfortable and bathroom was spacious with a bathtub. Free internet was available from the rooms. The buffet breakfast was great, but could be better if there could be a little variations every other day.
Expensive car parking and slow internet.

I always stayed at the Excelsor Hotel next door (same management or maybe owner?) and for a chance I stay at Monopol and was expecting a real 4 stars hotel (Excelsor is 3 stars hotel and quite good)

Instead we found out the 3 rooms we booked is old and "dark" the breakfast is not as good as Excelsor in variaties although the free mini bar is the same and free wifi also

Overal is OK hotel but I prefered Excelsior

Good hotel which offers very good value. I was pleased by the quality of the breakfast and the cleanliness of it's rooms

I originally planned on staying at an airport hotel as I was in between flights. However, the inexpensive and fast S-Hahn train from the airport to the Hauptbanhof made me realize that this hotel was a more attractive and less expensive choice. Door to door from the airport to the hotel it was 25 minutes

The Monopol is across the road from the Central Station, a handy if not particularly salubrious location. Staff were friendly and welcoming, quick to point out that here you get (for just over 60 euros for a pre-booked single) a minibar containing soft drinks and two beers (!), plus coffee and cakes free for most of the day. The room was a bit tacky, with a loose door handle and not much of a view, but I spent a comfortable night here and enjoyed the decent breakfast and good choice of fresh coffees. It’s just a couple of minutes’ walk down to the river and you can amble along the waterfront or cross to the many museums on the other side. Excellent value but hardly luxurious.