I've found them lovely to work with, and they are a soft silk much like Dinky Dyes; Waterlilies is a little more twisted. The disadvantage is that although every colour has five shades (which is great for detailed shading), there aren't that many colours, so it wouldn't do for very complicated designs with loads of colours.
For solid colour silks, I find Caron's Soie Cristale hard to beat but oh boy the cost...
Also HDF (Vikki Clayton), which has many shades and is a bit more affordable but as far as I know only available from America, so you have to add import duty (and the unavoidable Royal Mail handling fee of £8

) to any order over about £15
For variegated/shaded silks I

Gloriana. But again, the expense puts me off except when I'm gicing myself a special treat
