Centech makes a nice product. I'd like to point out a few differences;
1. Both ours and the Centech are the same price. However, the Centech does not include a relay, main fuse, any wiring or connectors. For an additional $29.95 you can purchase a relay and connecting wire for a total of $79.90. This total still does not include a main power fuse and holder.
2. The Centech, by lacking the relay, does not have a protected connection point for a battery charger.
3. Ours does not have the ground buss.
4. In 20+ years of experience, I have never found where a lugless connection as used in the Centech is superior to a crimped or soldered connector. The vibration from the driveline and road will at some point fracture the strands of wire and you end up with a short. Of course, you can remedy this by properly tinning the wire with solder.
People should buy whatever makes them happy and fits their needs.
