Did the job lovely, although ones sent did not have point on end as shown. I would recommend drilling a 2mm hole as a pilot to guide them in but this will also help to see if there is any wood behind the plasterboard before screwing in theses plasterboard fixings as you do not want to try screwing plasterboard screws into wood!! I would totally recommend theses plasterboard screws.
These are great fixings, I wouldn't use anything else in plasterboard. One word of caution however; they are 'selfdrill' but in certain situations you may want to pre-drill a small hole for them rather than relying on them to 'selfdrill'. This is just down to different plasterboard and whats on the surface, paint/wallpaper I think, as sometimes they can crack/bubble the plasterboard. So if you're unsure, drill first.
I've used these to fix some really heavy stuff like big screen plasma TVs.
Another good use that's not really mentioned is if you want to regularly screw / unscrew the fixings (I used it for a hidden safe!) As the threads don't wear out.
Bought this for hanging a coat rack in the hall. We abuse our coat hangers - hang coat after coat on it until they slide off! Far heavier than they are supposed to be - these have kept it hanging on a plasterboard wall without a problem. Easy to use and to fit - do the job nicely. One tip make sure the screw size that come with these is what you want - you cannot use different screws with them.
My preferred choice for attaching anything to plasterboard. I currently have a light bar in the kitchen suspended from four of these (the beams run in the wrong direction to mount it to these where I want it) and it is rock solid. As others have said, for best results drill a small lead hole, rather than relying on their self-tapping design.