I have two of the silk/cotton v-necked jumpers, and two of the silk/cotton vests. They're lovely, though I wish the straps of the vests were further apart, as they are nowhere near my bra straps.
I also have two of the cashmere/merino jumpers, which are brilliant. I can't say how they wash yet, as I've only just got them, but I have worn one of them to work this week, and it kept me toasty :)
I had ordered the cashmere/merino crew-necked cardigans too, but while they were lovely material and fabulous colours, they were far too wide in the body for me so I had to sent them back :(
My measurements are 33/27/37 (30E bust) and I have wide shoulders. I usually wear a size 8 (sometimes 10) elsewhere. The Woolovers size small is great for me for the vests and jumpers, but the cardigans are a lot wider.
They do have garment measurements on the website, so I recommend measuring a jumper you have that fits you well, then comparing to the measurements of the items you are interested in.