I've got a great denim dress from Sea Salt that I wear a lot and it always gets loads of compliments. I agree that a lot of the patterned stuff in there is pretty naff, but I've bought a few plain tops over the years and they wash well.
Mind you, I buy stuff in White Stuff, too, because I especially like them but because my small town only has Sea Salt, Crew Clothing, White Stuff and a tiny branch of Next that has a very limited range. We used to have Monsoon and a couple of great independent boutiques, but they've all closed down.
I really can't be arsed to schlep miles into a big town for more variety, and I've got sick of online shopping as I reckon I end up sending 80% of what I order back.