As of April 2013, still in terrible condition. Hundreds of potholes and broken surface. Resurfacing is still underway. It doesn't look like it will be a good road any time soon.
R 1013 / R 5118/ R 4016 (same road) north east of Mae Chaem
In really bad shape in places, below is a good section. There are some completely broken areas where it's a dirt track, rainy season won't be good here.