I have only used it once, but this tool seems to be well-made and does a good job. I unfortunately have been used to holding the cable in one hand while turning the crimpers around in my other hand (from making cables at work). When I did it with this tool, I caught one of the blades with the back of my index finger, leaving a good gash nice and sharp! I will be much more careful in the future.
The lack of a guard for the blades is the only reason I give this an 8 instead of a 10.
This is an amazing value. The quality is excellent, operation is as easy at it gets, and the price is low in relation to the quality of the tool. I have owned crimpers of equal or lesser quality that have cost five times the price of this tool.