This is Talip@Evercoin. We have mainly two kinds of fees. Miner/Network fees, which are fixed and can be listed (and we will). Second one is our fee, which is dynamically calculated based on multiple parameters such as our reserve, market trend and recent transactions. It is basically a risk calculation. We can and should say that on our FAQ but not sure if that is going to be 'transparent' enough. Btw, we are a new service, we need feedback from the community to know how to make our service better and time to get them done. We are committed to become better. So please keep the feedback coming.