I've stayed here twice. The first room I had was excellent with great views. The second not so good on a floor that smelled of cigarettes. But overall it's better than other Radissons in the capital.

Booked this hotel as was attending a conference here. I assumed that with it being a Radisson it would be of a certain standard knowing the brand from other hotels...
I agree with a lot of both the positive and negative comments on here however my overall rating is based on the poor customer service .. there was no real interest in me as a customer from most of the staff - bar the concierge who was quite helpful (although you would expect that bearing in mind their role!). You would expect that on checking out you would be asked about your stay... this wasnt the case. I was so pleased just to be checking out anyway I didnt want to spend any longer there had I been asked anyway.
In summary:
- business room very dated and noisy - noise including plumbing from above rooms, - glass bottles being thrown into skip at rear of hotel at both midnight at 2am (I admit this may not be from the hotel but it does affect your overall experience);
- very dusty in bedroom - especially on ledge behind bed;
- bathroom not to a standard you would expect - eg hairs in the bath;
- no hot water in the morning;
- plug socket hanging off wall behind table;
- sign on door stated I could access free movies during business stay - no instructions on how to do this;
- room service was a let down (with a charge of £4 not what you would expect) - the meal I ordered wasnt available yet I was still charged for it ...
I feel it was every expensive (£210) despite its very good location...I wish I had booked to stay in a Premier Inn - you know what you are getting for your money then.
I will take the time to write to the hotel to get their comments.

Well stopped here for a long weekend close by to everything hotel smart dinning area is open spacious friendly and super clean.
Amazing food, if you like good quality food in a restaurant hotel or anywhere well the Radisson Blu Portman is the place to stay, drinks are a bit pricey and food maybe a little expensive but its good breakfast well fantastic arrange off all breads just everything to fill up on before adventuring into london sightseeing.
I certainley would go back and highly recommend this hotel. Just perfect.

I stay at Radisson hotels quite frequently and arrived fresh from the Radisson Royal in Dubai only to be starkly reminded that I was back in central London when i opened the room door after a 90 minute wait in the lobby. The room was dated and shabby and for some reason I had a disabled room and all the extra cords, buttons and railings seemed to detract further from the appearance. As a gold Carlsson member it was all a bit dissatisfying.

However, i did have to change my flight arrangements and left at 8 PM the same night and received an unasked for reduction of GBP120 in the daily rate. It was then that i realised that all Central London hotels do show there age a bit but that the staff here were all super friendly and helpful wherever possible. The waiter Karthik in the lobby area is a real testament to great service and attention Nice one :-)