Really good value
We got back from Budapest and our stay at the K&K Opera yesterday. We found the hotel to be of excellent value - it's in a great location, it's clean, the much mentioned breakfast provides great variety (although it is a bit of a bun fight most mornings simply because of the way it's laid out!) and the staff are polite and generally helpful. I read that another reviewer only got a hand held shower in their room - this wasnt the case for us and we had a really great and powerful attached shower in our room, which is greatly missed now we are back to our effort we have in our bathroom at home :-)
I think the K&K is a good, above average hotel and I would definitely use the chain again. I do agree with other reviewer's comments about how hot it is in the hotel though - they need to turn the heating down!! They could also do with dimming the lights a bit in the restaurant, it's definitely got a bit of a 60 Watt kitchen bulb effect going on.
We loved Budapest - yes it's not as cheap as everyone may tell you but it's still good value. It's a beautiful city that is walkable and the restuarants we went to were brilliant - I would highly recommend Goa, the Leroy Cafe and also the Marquis de Salade (although the service was a touch on the slow side so dont go there if you're in a hurry!).
We had a great time in Budapest and found the K&K Opera to be a good base for the weekend. Definitely recommended.