I bought the Cambridge 540A to go with Mission bookshelf speakers and was immediately impressed by the quality of the sound. I use it for listening to CD's in a normal home environment in a medium size room.
A few months ago I decided to upgrade to floor standing speakers and bought some KEF XQ5 which were on special offer. This relatively small amp powers them beautifully and the sound is amazing - it seems to match the KEF speakers very well, very clear treble and mid range and enough power for good solid bass.
The remote control is of very high quality, better than on amps of over twice the price. It also controls the other Azur products, but the only thing it won't do is switch off the unit and there is no "standby" on the amp.
For the price I can't recommend it highly enough.