PERFECT in nearly every way.  They are definitely light-blocking (not just filtering -- these are impermeable), and the ombre effect is nice.  I do wish there was less white at the top (start the ombre effect sooner), but that's just a matter of preference.  They've been an amazing addition to my daughter's room and make it look HUGE (we hung them at the tippy top of the wall so that they fall just 1/2" above the floor).