Its a good way to go because you are very much less limited in where you place your easel. You may want to think of a less reflective color than white, you really don't want any more non image light bouncing around the darkroom than necessary if you are doing any severe cropping. If all you do is B&W a dark yellow or orange may be right. If you really need to see the image projected throw a sheet of paper down, like the back of a goofed up print.