This half marathon is a very low-key and unglamourous race, in stark contrast to the 10k which runs in June (operated by a different company), and perhaps having run that 10k a couple of times means I'm rating this half a bit unfairly.
Overall the course is very flat along the seafront (well, the adjacent road) for 2 miles, into town for 5 miles, and then back out along the front for the final 6 miles which is more or less exactly the same course as the June 10k.
Most of the course, apart from the residential streets, are quite exposed so you get some full-on sea breezes in one direction and calm, balmy heat in the other. The scenery is all pretty uninspiring; all you see of Worthing are the seafront hotels and flats, a barren grassland, and some bare residential streets where the locals are more irate that their roads have been blocked than out supporting the runners (though there are some good supportive patches along the route, with the largest support at the start and finish).
I think there were 4 or 5 aid stations along the route, though these were very small 1 or 2 tables with marshalls handing out small plastic cups of water (a bugbear of mine as half the drink is gone before you can get anything out of it).
All the registration was done pre-race, numbers sent in the post, and there's baggage storage too. Worthing itself on a nice day is lovely to explore, plenty of places to eat and drink (strongly recommend the Fish Factory) and parking is also very easy on the day, lots of car parks near the race start.
In summary, I think this is a mentally tough race because it's so flat, exposed, and has nothing much to take your mind off the long stretches ahead of you. It's not crowded so if you're focussed and get your head down then a PB can easily be achieved, but if you want big crowds, visual stimulation and an 'event feel' then this isn't the race for you.