The best thing about this is that all links are verified for safety before it goes live, so you know what to expect with your campaigns! It took me some time as I had no prior experience but once i got over my initial doubts everything went well from there!! They have great support staff too who were always willing/able ot help if needed which made working harder more enjoyable :) Nothing really at present other than their overall customer service level they provide (this was not something we saw when searching elsewhere). Definitely recommend giving them an opportunity - be sure of whether or otherwise its right fit though given how easy affiliate management can become without proper set up!! We used link wise mainly because our clients wanted us do manage multiple websites within one account rather then having different accounts themselves hence making linking easier / cheaper etc.