Don't listen to any negative reviews. The point of using a traffic lawyer is to not have any points or insurance increases, not to nullify or reduce your fine. Sometimes the later happens, which is great, but it should not be your expectation. Your insurance premiums going up is what you should be concerned about(3 years of increased premiums will cost far more then the ticket and lawyer fee combined). Let's not forget that you won't have to go to court either - I don't have that kind of time to be wasting and I'm sure most people feel the same.
I've used them twice, and about to be a third time. My first time I had 3 tickets - no insurance, failure to dim headlamps, and 70 in a 45. First two dismissed, third went to illegal parking which means no points and no insurance increase. Perfect. I'd be in a mess of trouble if it weren't for these guys.