If you do not do terminations CAT5 very often then its for you. Price and quality is good. I used them a few times to make custom length cables for my home network. Its much better than buying new ones.
I don't use this tool often but have needed to replace ends occasionally and it works for that. The crimper seems to break the little piece of plastic that is supposed to hold the cable into the plug but I think it may have to do with the quality of the RJ45 Connectors. For the price it works as expected.