We have a very cheap Hotpoint Washer/Dryer and it's great. You do have to put a smaller load in of the dryer stuff but that works okay in our household as I only chuck the ironables in and air dry the rest. It's had about 3 repairs over its 8 year lifetime though (although I suppose that's standard).
It's now on its last legs though so we're in the same position as you! Current ones we're looking at are the Bosch, the equivalent Hotpoint and the Ariston.
The Bosch seems to be the quietest (and this would be a huge bonus at the moment - the Hotpoint is loud) and before this thread ( ) I'd heard good things about Bosch. Hotpoint seems okay in terms of features and is cheap and I've been happy with our current Hotpoint, but.... shrug Ariston has all the features I want but I have no experience of Ariston stuff so I don't know whether to risk it! I'd like to get the AEG as we've got an AEG dishwasher and we were very pleased with that, but the AEG washer/dryer seems to be a bit overkill with features and slightly too big for our "gap".