Thank you for posting your feedback on DAP Plastic Wood-X All-Purpose Wood Filler. DAP Plastic Wood (all versions) are designed and tested for both sandability as well as stain and paint/coating performance. Regarding your commentary indicating: “...did not match the stain color. I was told I could stain over it and it looks awful.”, taken from the package label and supporting product literature: "if staining, test wood filler with desired stain on scrap wood before filling to ensure desired stain color." and "If wood is to be stained, stain before filling with wood filler. Then use stain to develop desired final finish.” Because you did not provide any details regarding your attempted application/finishing process, it is difficult to provide you with a more specific response or corrective guidance in this format. Should you wish to provide this information, so we can address your concern and to offer additional finishing guidance, please feel free to contact DAP’s Technical Customer Service Department at 888-327-8477.