Overall this is a great product but its a little tricky for a first time user. I applied to the satin finish GlazeGuard on a matte porcelain tile for added shine. My issues are due to user error and a 'no brush' caution not being in the directions. I used a brush around the baseboards before rolling the product on and to smooth out some product pooling and lap lines after rolling. That was a mistake. In the areas that had only been rolled, it looks great however in the areas I'd brushed the marks show and didn't flatten as I'd expected. I didn't notice for 48 hours (had avoided walking on it) and by then I couldn't apply another coat that might have helped hide the marks. Sanding would be an option but physically I can't do that. A company that uses this product said they would....for $1000, for a 75 sf small bathroom! No way. So I am stuck with marks. Bottom line - great product that would have been perfect if I'd not used a brush. Just roll it on and let it settle. You may have to zoom in on the pix to see what I mean. Charles was a great help in product selection and how to strip the floor after I'd messed it up with Mod & Glo.