The collective experience of the AKSA users on this forum can attest to its reliability. That said, the AKSA N+ is a highly strung racehorse of an amplifier. It is the Porsche club racer you take on the big boys with but drive to the office every day.
The AKSA N+ is a very high gain / high feedback amplifier with its compensation pared to the bone - I suspect this is what gives it it's amazing speed and responsiveness.
However, be warned - I have blown several up through stupidity! Dont play around connecting or disconnecting things with it playing!! Don't open it up and stick your fingers in whilst it is playing!! Dont buzz the input terminals to see if it's on! Be cautious testing highly reactive speakers / cables. Don't short speaker leads!! ( I did

It is NOT protected.
We all know, if you build it well and take commonsense care you will have no problems. Treat the "balanced" mod like a pits based suspension mod on race day.
cheers