I'm 35 and have bought all my swimwear (apart from maternity) from there for a few years. I have the sport tankini, that Cod undoubtedly hates but its comfortable, respectable (important with a 2 year old that likes me to climb in and out of the pool a lot, sit on the edge and kick my legs etc), and covers all the area from just above my bust to below crotch that no one else needs to see.
Its excellent quality and seems to be cut based on the shape of real women of each size.
If I was a member of the lounging around on the beach/side of pool fraternity I might buy a skirtini