This hotel is well placed for access to Oxford and Regent Sts, Hyde Park and other areas. However the 4 stars it is awarded on various websites is a long stretch. The room needs painting, wallpaper is tired. The bathroom in our room is far too small for any average sized person. The toilet sits against the wall, and you basically have to sit sideways. The shower is roughly 2 foot square, and you cannot keep the shower curtain closed. In fact, I am surprised if it actually conforms to building code.
In fairness to the hotel, staff are friendly, and when approached will move us to another room in the morning. We will wait and see...

Staff is trying to stay calm despite the horror situations in a 4* Hotel! But in London everything is possible,tiny rooms,not adequate for couple sharing,dont stay on floor 7 or 8! elevators slow,breakfast buffet basic but ok served by helpful people! When asked for Manager was given business card to contact by mail! Great Hospitality but thats London, summing up: a rip-off!

We enjoyed our stay at Grand Royale London Hyde Park. Often pictures on websides and internet promisses more than you get in real life, but in this case we got exactly what we were hoping for. Yes the rooms are small, but hotel rooms in London are small, and at Grand Royale the rooms are decorated with taste and they are clean. We loved the bathtub :-) And breakfast was enjoyable. The staff was wery helpfull and accomedating. Our only complaint was, that our room wasn't ready at check in, and we had to wait for one hour. Next time I visit London, I will be staying at the Grand Royale London Hyde Park.

If their website is to be believed, we should have paid nearly £400 for our room for one night! However, we paid just over £100 at the weekend. If we had paid the full rate I would have been very disappointed. However, for what we did pay, we had a comfortable stay in a hotel well located for Hyde Park and two nearby tube stations.
Our 'deluxe' room was well equipped but very small. I nearly went down to reception to check that we had been given a deluxe room, but thought that as it was only for one night it wasn't worth bothering about.
Sleep quality was good as the beds were comfortable. The public spaces were suitably grand and the buffet breakfast was perfectly acceptable.
The Grande Royal is fine, but just make sure you don't pay the full asking price for a room as it would not be worth it.