Definitely. I'm a fairly local travel agent and am constantly surprised by the number of people who didn't even know it existed. However, once a customer flies from there, 9 out of 10 are converted and love the place.
I always try and promote the airport where possible. It's very much in my interests for the place to succeed, but it is difficult when TUI and Flybe are your only options.
If we could just get a Jet2 or Thomas Cook in there with a meaningful program (i.e. not just Cook's token PMI flight), then the place would really take off.