Zulily takes FOREVER! Even knowing about the built in "processing time" they still ship SUPER slow - it took me over 3 months to get stuff I ordered at the end of summer (it barely made it in time for Christmas!) Granted, I am overseas so our shipping is typically slower but not by THAT much!
Keep an eye on your order as well, if it can't be fulfilled for some reason (for me it was not available to ship to an FPO but wasn't marked as such and still charged my card) it just won't ship. And don't expect an email stating that there's an issue, there won't be one. Zulily has some great deals but, if shipping time is important, it's better to pass them up.