Summary: Very effective tool; I've owned one for a few month now and used it on various types of wood and plaster walls. With a range of discs (80, 120, 240 are a good normal set) you can quickly get to a very good finish.
Summary: This is the only orbital sander I have ever used and I'm very impressed with the results. There is still quite a lot of dust created, despite the bag, so not quite a 5 star rating, but excellent nevertheless.
Summary: I highly recommend this sander. Having struggled with a cheap Ryobi in the past this like sanding with a Rolls Royce. Amongst other jobs I've used it to effortlessly sand down the whole of a 2 bay stable in no time at all. 5 stars from me