When it comes to Apple I am usually reluctant to use 3rd party accessories because I was sold on Apple's marketing that their products are a lot more superior and work with their products a lot better. I decided to buy a spare lightning cable but didn't fancy paying £20 for what essentially would have been just a charging cable.
I looked online and settled on this one because it's made by a reputable company (Bargain Fox) and scored high reviews. I'm happy I did because it worked just fine, charging my phone as normal and worked perfectly connecting/syncing files from my iPhone to my computer.
i found the 1.8m to be a very good length, the cable itself is strong, flexible, and the braided nylon makes it durable. It has a very good build quality that makes it robust and will allow it to last a long time. This cable is great if you don't want to pay the "Apple tax". It is definitely good value for money and a very good alternative to the official Apple lightning cable. Hope this helps.