I fish there almost every week. Past month I've managed a 48h & 24h on Sandmartin & a 24h on Swan.
To say this place is easy would be completely untrue. When on Sandmartin last week the only person that had anything had been there for a week. I was speaking to a guy that was walking around who had been fishing Sandmartin all year and I was told if I got a bite in 48 hours I'd be doing well and I now know where he is coming from.
The whole complex gets very busy on the weekend but there will be always space but it might not be where the fish are.
This is obviously what I myself have found (maybe poor tactics or poor angling) but I think most would say it's not easy. People have come away with amazing catches and you may too.
I am still drawn to Bluebell as it is a beautiful complex and very well looked after. I may have blanked on three separate sessions but I feel when I do catch the prize will have been worth the wait