CGR Mandy

Not sure if any of you have heard anything about "Exile" brand amps. I had a rockford 3001 for 3 years and it blew the other day. My friend works at future shop and hooked me up with an Exile 400.1 monoblock for 150$, and so far it sounds ok. Was just wondering if anyone out there is running or has run one of these and what they thought of it? Yes, I realize its not a high end car audio product, but in comparison to the other entry level amps what did u guys think?