It took a little longer to get the project going, as we had to agree on the style of the icons. We first worked on the general style by starting with the first 3 icons. Once agreed, he provided at least 3 different options for the rest of the icons I requested. He would gladly change and provide additional options if you are not happy with what he presented. We had to reduce the number of icons than the original proposal, though, in the interest of keeping the cost down and finishing on time.
There may be some gaps in communication so make sure you communicate well. Be specific in what you're requesting -- what resolution, what file format, how to display, etc.
In this case, once he understood what I needed, he was able to deliver.