I have a black design wall and absolutely love it!
Yes, black shows threads, whereas white would go grubby/dirty, which is why I decided on the black. Once in awhile I go over it with a lint roller, but not too often. Besides, most of the time, you have things on it, so you really don't notice the loose threads left behind.
The fleece is stretched on sheets of tentest sheeting and then screwed onto the wall. 7-1/2ft x 10ft!! A quick swipe of my hand and the blocks stick. Also, I've had pieced work on, and they stay put without any need for pins. I've even had fully put together quilts on there after I pressed them, just to keep them flat and no problems with their sticking without pins!
Some mentioned concerns about the black showing thru lighter fabrics. Sure, this could happen if you have very thin fabric, but you would know why, so is that really a huge concern?
An interior designer once told me that black is the best way to "see" a true colour. Meaning that putting a piece of fabric on black will give you a better read of what it is, than putting it on white.
It really comes down to what you want and prefer!
Yes, I love my BLACK design wall and have absolutely no regrets. I don't know how I ever sewed without it before!
