I would use a local agent. I would also pick the largest brokerage in the area, because that will get you exposure to the other real estate agents (the brokerage will make more money if they sell their own listings and they often have higher compensation to their own agents). One of the best pieces of advice I have is make up a whole bunch of 4" x 6" tent cards listing all the features of the home and have them placed near those items throughout the house. Got a new wifi enabled thermostat? Have a card explaining it next to it. Got 2 x 6 walls with added insulation, have a card. Natural gas in the house..card. Do it for everything, no matter how small or how common. Put out a card for double pane windows, a buyer might assume another house didn't have them.
What you will find is every agent showing the home will do the same thing, throw open the door and say "isn't it pretty". In most areas, your agent will never, ever show your house, will never be there when someone else shows it, and may not even know it is being shown.
Listing the house is the easy part of a real estate sale, and many agents focus on doing just that. They say and do whatever it takes to get that listing, post it on the MLS and consider their job done. You need to get the attention of the selling agent. I have had good luck offering a selling agent a personal bonus of a couple of thousand dollars (could be a gift certificate or airline tickets or whatever) when the sale closes. Since commissions are split between listing agent and selling agent your listing agent is counting their money when they leave with the listing agreement. You have to get the second half of the commission working for you.
As for traffic, you have to evaluate why it is not being shown. Reason #1 is usually price. Reason #2 is location Reason #3 to 100 is there is something wrong with the house and it's presentation. If it is a structural problem (i.e 4 bedrooms and only one bath, hideous floorplan, sore thumb elevations etc.) the easiest fix is to adjusting #1. If it is just poor execution (clutter, shabby landscaping, dirty, bad paint, etc) put in the effort and fix it. Good luck