I finally caved in in purchased some brushes from Coastal Scents. I must point out the exceptionally quick shipping times to the UK. I have placed two orders with CS so far and have recieved both packages within a week.
The first order was the Supreme Synthetic 15pc Brush Set With Case and the Synthetic Angle Blush and Define.
The 15pc set was okay for the price of $24.95. The Tapered Powder Brush and Tapered Blush Brush feel a bit scratchy, like the synthetic hair was manufactured to resemble natural hair. They are certainly not soft, not even a little bit. Both powder brushes washed well, I experienced very minimal shedding and no smell. The various eye brushes included in the set are all firm, there are no fluffy brushes suitable for blending in this kit. I have not used the foundation brush yet so cannot comment on how it applies liquid foundation, however the bristles seem a bit flimsy so I imagine it will yield a streaky result.
The Synthetic Angle Blush and Define is lovely. Really soft and dense. I have been using this for contouring and it produces a very natural, soft effect. I only need to dab the brush into my powders to pick up enough product. I would re-purchase this one for sure.
The second order from CS contained the Sable Blending Brush, Tapered Crease Eye Brush and the Silver Fiber Duo Stippling Brush.
I must point out that I have never used a MAC brush before, so cannot make any comparisons. Both the Sable Blending Brish and the Tapered Crease Eye Brush work well for blending, I find that I have good control. They aren't scratchy, but are not so soft that they smudge eyeshadows too much. The Stippling Brush is nice for applying blush, I haven't tried it out with liquid products yet but it doesn't seem dense enough to apply smooth coverage.
I'm fairly certain these brushes are Crown Brushes, however purchasing from CS is so much easier that purchasing direct from Crown.