A friend of mine has a set, and they are pretty nice compared to other slugged chips. The colour between the $25 and $100 can cause the odd dirty stack, but it's not hard to catch it.
If you are used to 11.5g or lighter chips, you notice the weight, especially if you shuffle them. Price-wise, they are in the $0.19 / $0.20 per chip range, at least in Canada.