Awhile ago I was in need of gesso but my local art supply store had run out of the professional grade so I picked up the student grade Basics gesso. Unfortunately it isn't opaque and is actually a bit gloopy (I'm not sure if I explained that well) but I'm finding that it works great to create drawings for my paintings. It wipes off quite easily if I'm not satisfied with my initial drawing and if I wet and wipe it immediately and it also blends well into top layers of paint. So, I guess it's not a bad thing...just not quite as useful for what I had intended.
AIRdirondack Art Project