Fewo-direkt started in Germany and remains strongest there, but their inventory spans the whole continent. You'll find holiday apartments in Spain, the Netherlands, around Lake Garda, and further afield. The site's straightforward enough: filter by location, dates, price, and amenities. Most listings are owner-managed properties rather than corporate chains, which means you get actual character and often better value.
Their strength is breadth. You can hunt for summer destinations one week and autumn getaways in the Netherlands the next. They've got themed collections too (pools, rural huts, budget stays) which saves time if you know roughly what you want. The downside is that not every listing is immaculate, and a few owners are slow to respond. Customer reviews are usually honest though, so read them properly before booking.
The site leans German and European, which works well if you're based in the UK and fancy a guaranteed sunny week somewhere affordable. They're particularly solid for family holidays where a flat with a kitchen makes more sense than a hotel. Payment and cancellation policies vary by property, so check the details carefully.