I use the set you linked to at Amazon regularly. Around 50-75 crimps per week. I have two, one at work and one at home. The one at work is over a year old but still works just like new. I just started using the one at home and it is brand new. Both crimpers feel the same and produce equally good results. I have also used the set that GPE sells.
I like the Ratcheting set BY FAR!!!!! Once you learn how to use it, you get a perfect crimp every time and it does both crimps simultaneously. For the $25ish, there is no comparison.
I build speaker kits for pinballpro.com and use these crimpers for that work. Making wiring harnesses and connectors is what I mainly use them for.