The only reason i am giving it 4 instead of 5 starts is because I would have liked the ability to connect larger than 4 gauge wire as my power and ground connections. The terminals for power and ground where made for 4 gauge and not big enough for the 1/0 gauge wire i wanted to use.
Other than that this is a great amp for the price. All the features you would want in an amp.
(Update)
I have now owned the amp for a few months and everything still works like the first day i bought it.
Another update about 2 years after purchase:
Still working great. I am looking at buying another one for my car.