I have 2 Coast lights, one head light and one multi-color recon. I used the head light on a job at a museum (U-505 project) a couple of years ago and it preformed magnificently! very bright, long lasting (still haven't switched out the batteries!) and was the envy of the head lights!
my second Coast I just got this past Aug at Blade Show West. I wouldn't say it's the most waterproof light/torch I own but I do like the many colors of LED it has and I got a good deal on it; so I like my Coast lights, they do the job and seem to last a long time.