Just a little wobbly, which is why I did not give it 5 stars.  It's easy  to put together---just lay out all the pieces in order and follow directions.  All you need is a phillips screwdriver.  I can't fasten it to a wall because of the fragility of the plaster, but once in place, it is quite stable.  Perhaps that would be more of an issue if I had small kids, but I don't.  It's the right proportion for a tiny bathroom and holds a lot in an orderly fashion, and 62 inches is a perfect height for someone who is vertically challenged (5'2").  The only problem I ran into is that the stability bar at the bottom is only 8" above the floor,  but my toilet's water inlet is 12" above the floor.  Let me tell you, it took some gymnastics to get that screwed together in a tiny, tiny space!  If at some point I have to remove the shelf to repair the toilet, I may decide to take it apart and reposition the screw holes above the inlet valve.