My first thought is for you to ask yourself, what it was about your home that excited you enough to make the purchase. List those features or benefits and share them with your agent so that he or she can share them with potential buyers. The agent may be overlooking a hot button for buyers.
I can totally understand your frustration, since I am currently representing a client that has a very similiar situation. You've mentioned that you are priced right according to comps. I learned through an appraiser that homes located on a main street adjust down about $10,000. So, if you are neck to neck with the competing homes in your area, then perhaps you are not really priced right.
I'm trying to imagine the layout you've described and I wonder if planting some tall slender evergreen trees, spaced closely together might give your home a more private feel.
Since you are receiving great feedback, I'm sure you have a lovely home. However, location is not something you can change, so I guess it boils down to price. Truthfully, it's always the price!