Excellent. I love those buttons. I didn't even know that was an option or I would have maybe tried it on one of my linens.
I received my review request the same time I received shipping notification. So I'm not sure what their "system" is, but they'd probably get more feedback if it cued on confirmed delivery by the courier. Still, I plan to post a review on their site. Although my wait time has been equally long, I've received excellent customer service throughout.