I read all the reviews before buying as I wanted something that would prevent further rusting on metal furniture but still keep that lovely colour. This stuff is brilliant. It is very easy to use and I'm not an expert in DIY either! I first brushed off the loose rusty bits and any loose chips of paint with a wire brush and a craft drill for the fiddley bits, then wiped any dust off with a damp cloth. I made sure everything was completely dry and then slapped the Penetrol on with a paint brush. It goes on so easy and you can easily see where you have painted it on. Any drips can be wiped off with the brush or just brushed on elsewhere.....believe me, I just wanted to get the job done so no going slow for me! Then I left it to dry. This does take a while. I left it a minimum of 24 hours but sometimes this would take a little longer. Any tackiness just means it isn't quite dry yet. As I was painting furniture, I painted one side up, left for 24 hours, then turned it the other way up and repeated the job. There's no signs of any joins and any bits I might have missed I was able to fill them in no problem. The result is a beautiful glossy finish and I don't even think it necessary to put on a top coat. This product is pricey, especially if you compare to the US, but so far I have used this on 8 metal bakers' shelves and on a 36 bottle metal wine rack and there is still plenty left for other projects. Plus this product has completely transformed them as they now look very classy. When I run out, yes, I would certainly buy again.