I bought this because I hate sanding plasterboard. Now that I'm 67 I hate it more. House required some renovation and re-sheeting of two walls. Purchase and delivery went smoothly and the unit arrived quickly, and immediately.
It works great on plasterboard cutting my sanding by more than 50%. It is a bit heavy when working overhead for long periods of time, but given how quickly it cuts, you won't be using it nearly as long as you would be using a swivel-stick style sander.
I regret not ordering the system with a vacuum bag getting the hose to connect to my Karcher DP6 was fiddly and required some inventiveness on my part. This tool is an awesome value, and works really well! I highly recommend getting the version that includes the dustbag as you cannot get the dust bag as an accessory.