We use Beach Rentals of South Walton for our rentals and have been happy overall with their service so far. We live quite far up north, so we have to have someone a few miles away to check on our cottages and I felt a larger business would have more resources. Overall, we've been happy with their cleaning (we used a different agency before and the cleaning was significantly inferior), their repairs (they're proactive in identifying and responding to repairs), their treatment of customers, and their monthly statements/follow-up. For example, I found a $5.00 charge on my monthly Sprint telephone bill from a renter who took a collect call using our rental phone. I called BRSW and they took care of it immediately (charged it to the renter) and I had the $5.00 back on my next monthly statement. A very small concern, but it did suggest their record keeping and follow-up was good. As for getting rentals, I can't say because I advertise our properties on my own as well, and I think the majority of rentals come from my advertising. But I do know that I don't get all of my rentals from my own advertising, so it has been an advantage having BRSW (I have several rentals this fall that I don't believe I got through my advertising, so I'm happy for that since fall tends to be slower).
As for how well they describe different properties to renters, I haven't had any complaints at all saying that our properties were advertised in a misleading way at all, although we do keep them in top shape and they're in a great community so there's probably nothing to complain about.
In short, I'm happy with Beach Rentals of South Walton. They charge 20% for bookings that they get through their advertising and 17 or 18% for bookings I bring in. So far, I feel I've gotten my money's worth and I've had peace of mind while I'm far away (especially having seen a few of the repairs they've made without my having to follow-up - for example, my dining room table was getting wobbly and they fixed the legs on the table before there was a more serious problem -- I thought that was very proactive.).
Hope this is helpful.