I stayed in the Radisson two nights in mid-June, during a business trip.
If in doubt in any city, I tend to go for Radissons as they're usually stylish, practical for business, and not overpriced. This one was just such a hotel. The design of the lobby was VERY interesting compared to others - staggered reception desks (to make maximum use of a narrow but deep reception area), a minimalist bar, and some impressive beaded 'chains' adorning the ceiling-mounted lights, running the full height of the lobby.
While I liked the design of the lobby, the sight on opening my door drew a sharp intake of breath - something I don't recall doing - at the sight of the carpet. Wow. See the photos. I wouldn't worry, though, I ignored it after ten minutes; I hope you will, too.
I was given a corner room - 212 - which I assume was a bonus. There wasn't much of a view on the 2nd floor, which is fair enough, but the room wasn't overly spacious, as I thought perhaps a little extra space could be afforded by the fact the hotel was well outside the city centre. The flat screen TV was good, and internet access was free WiFi, as always at Radissons. The speed did seem to vary a lot, sometimes slowing to crawl - seemingly more due to active bandwidth controls, rather than congestion on the network (I measured 5Mbps one time, but only downloaded at 200kbps another).
The bed was comfortable; the menu of 12 different pillows on order impressive, but unused. The breakfast was pretty expensive at Eu26, and the dinner buffet on the patio outside the night before wasn't overly cheap at Eu27. True that I chose buffet rather than a la' carte, but the quality wasn't fantastic. It wasn't at all bad - but not impressive in any way, and I would have expected to be charged a little less for what you got. Perhaps the a'la carte would have been better.
As for transport, the hotel is a 5-minute walk from Tram 17, which is a 10-minute ride to the U-Bahn, which is one stop from the Hbf (Central Station). I quite liked a bit of a commute in the morning, but a Eu15-20 taxi is a faster way into the centre - it isn't exactly well-connected. A 15-minute / Eu25 taxi ride from the airport is much better, as it's on the same side of the city as the hotel; one taxi even managed it in 9 minutes when rushing for my plane.
The staff were moderately friendly; again, I felt productivity, but not huge enthusiasm.
All in all - the Radisson Frankfurt doesn't really impress. The bathroom, room, etc. were all new designs, and clean, and I appreciate that, but it felt like the hotel wasn't really trying that hard, while charging for something a little more than you were getting. Given it's location far out from the center, you'd expect something else in return - more space, or lower prices - but it wasn't to be. As a Radisson 'fan', I was disappointed.














