Sure there is a fee involved, but when I factor in the savings of time and aggravation and apply that time to producing even more pictures, I probably come out ahead of the game. Plus, the guys at LookStat know their stuff, which makes things even smoother for having images accepted.
There is a free analy
tic dashboard service on their web  site that provides you with personal sales data for your micro sales in select agencies.  Currently it is set up with iStock and Dreamstime, but other agencies are planned to be added in time.Service provider companies, like LookStat, are an indicator of the growing micro outlet. Any one submitting to micro stock on a regular, professional basis will need to add either in-house staff to handle the increased load of work, or find a service like LookStat to do it for them.
For me, the service is money well spent.