The Good: Light, Stylish, and as far as I can tell strong (I don't grind or do anything that would really damage a sprocket) What more do you need in a sprocket? I have the 30t version in black and it look very nice, it's hard to make a 30t look small/stylish with all these 25t's around but this sprocket does it. Also I got it for like 15$ off Coalition's website a while back. I've been riding it about 3 months, maybe more.
The Bad: None that I can think of. I haven't had any trouble or problems with this sprocket in any way.
I fully recommend to anyone who rides a 30t. It's cheap (around 30$) and light, while still being very strong. I like the look of it and I have had not problems so it's a good sprocket too me.