This is by far the best PLA I have tried. Sticks well and prints excellently. I have tried many colours and I've been extremely happy with all. Most colours are opaque and quite nice, and there are some unusual and/or unique colours too (e.g. space marine which is fantastic). Filaments sold by the meter and do not come in spool rolls; see RichRap's review below for a photo. Nicely packed and fast delivered. By far my favourite filament. Cannot recommend more highly!
See also RichRap's review: http://richrap.blogspot.co.uk/2011/08/splash-of-british-colour-faberdashery.html