Me and DH use Airbnb a lot and have done so for quite a few years now. Never had a bad experience.
We love having more space, a comfortable sofa (hate having to sit on the bed in hotels to watch tv), a kitchen if we want to cook etc.
I think they are cheaper than hotels even, usually the budget hotels.
We don't really like hotels. One usually cramped room, no way of being able to cook something, no sofa, often only one chair, often have to pay a lot for parking, set times for breakfast and, so many times, noisy guests talking at the tops of their voices at about 2am of having extremely noisy sex at 2am.
This year alone we have stayed in them in Amsterdam, Rotterdam, Stockholm and 6 different locations in the UK