What things do you not look for in somewhere that's normally fine.
So, for example, I might go to Next or M&S online for a good selection of jeans but I wouldn't bother to look for jewellery there. I find most M&S jewellery cheap and plasticky looking. There are a few exceptions.
Just looking for what others have experienced. Or a brand that's good for "X" but surprisingly not good for "Y" even though it's available
Hope that makes sense.