Whakin, I had a great Zanussi Jet 1200 washer dryer. there was no separate fluff filter as per conventional dryer but the filter on the bottom of the machine, as on conventional washing machines would have to be cleared more often and contain wet fluff than normally on a washer.
Yes, based on what a service guy told me yesterday, with a combi washer dryer, clothes will feel hot but damp, they should be aired straight away and will then dry. I am getting this more so with my not so good washer/dryer that is integrated in the house I moved into.... the dryer is next to useless so I'm considering a separate washer & dryer.