Delivery speed was good. Buuut... I was slightly irritated by the fact that the balls weren't packed as they were ordered. I ordered spare balls for am existing set, plus 2 sets of create your own, but the balls were all mixed up, not segregated into the sets. If I had not checked the boxes, and sent them on as Xmas presents (which is what they are) the recipients wouldn't have gotten the correct combinations. Also I had lots of issues with codes not working - the lady who dealt with me had tenacity! Lol. I appreciated her keeping her eye out for my emails otherwise it could have been a wholly frustrating experience. I totally love your lights though! Everybody needs a set (or 4 as we have here). Always room for more though!