I can't speak to the long term reliability of CJ amps, as I never owned one long-term, but I am not aware of any bad reputation in that respect. Here is a VERY interesting option IMO. I have no affiliation with the seller, but have been very surprised that these have not sold at this price. I own the MTR 101's which are a version with different heat sinks. They are truly great amps and look beautiful. They have very similar tonal character as the BK but much more refined sounding. They will drive just about anything and have great bass. Do yourself a favor and research them on line. I can't imagine anything better for the money. Good luck.
http://app.audiogon.com/listings/solid-state-meitner-mtr-100-recapped-plus-refinished-mahogany-cabinets-check-other-listings-for-red-2012-10-09-amplifiers-06801-bethel-ct
http://app.audiogon.com/listings/solid-state-meitner-mtr-100-recapped-plus-refinished-mahogany-cabinets-check-other-listings-for-red-2012-10-09-amplifiers-06801-bethel-ct