Combi or Standalone?

Considering buying a washer-dryer (combi). Courts is currently offering one for $500 (the lowest I've seen so far). Did some quick research online and, so far, the reviews (from users) are not encouraging. Common concerns/problems include:

• Drying function not as effective as standalone dryer
• If washing or drying function spoils, the entire machine needs to repaired/replaced
• Drying capacity is only half that of washing capacity, so will need to take out half the load between washing and drying (but then, if you had 2 separate units, you will need to transfer the load from one to the other anyways, so this one does not really count in my opinion)

Now thinking twice. If you have a washer-dryer (combi), hope you can share your experience (and recommendation).