I worked at SW for over 3 years and sold many of those kits. IF i were you i would check out their website as it use to be pretty informative I'm not sure if it is anymore, otherwise its pretty straight forward, and only can really come out as good as you prep. Ive see some color look great like blue,tan,grey and others like red and yellow look terrible. The clear doesn't really have a luster to it really unless you build the product up, or more than one coat. Do not park cars directly on the floor after coming home or you will get hot tire pick up, which is the most common failure in these DIY kits. As well it is not meant for heavy duty applications if you just want to freshen up your space or bring it together it will be fine, but it will not withstand high volumes of traffic. Your best bet is to prep your concrete as good as you can, using a high quality soft woven roller and take your time, only paint the recommended section at a time if your doing flakes, also keep a wet edge on both products. Also i recommend using some mats in high traffic areas such as in front of doors or workbenches this will help cover/slow down wear in these areas.
