Product review (2 stars): They should have tested it or done a better job protective wires before pulling it in through the ...
Its okay, but quality control is lacking.
First the internal wires where cut when they pulled the wires through the flex conduit.  This created a short instantly when we switched the breaker back on.  Luckily my electrician knew there was a problem and investigated further.  He re-insulated the inadvertent cut in the wire and fixed it with thick rubber tape insulation.  They should have tested it or done a better job protecting wires before pulling it in through the conduit.