Reliability of Dan D'Agostino equipment

It's highly unlikely D'Agostino has maintained it's level of perceived "ulra fi" with shoddy with reliability and customer service.

That said, unless you're buying from a private seller, a legit dealer is the way to go.

The Dagastino integrated amps have some issues. If you want bullet proof in this class talk to GTT Audio and get an Audionet amp.
I also had a lot of good fortune with Mola Mola. I also think the new Dagastino stuff is too colored. It’s not neutral. That’s why a lot of Wilson guys like it since older Wilson was analytical. New Alexia-V and Alexx-V are perfect though.

Another good brand with few problems is the Gryphon amps.

At the prices the really high end equipment manufacturers charge, those products should not only sound great but do so for a long time w/ virtually no reliability issues! 
 

For myself, I judge whether to buy audio equipment or actually almost anything of at least decent quality based not only on performance but long term reliability vs the cost which then for me defines it’s ultimate “value”. 
 

I think todays modern speakers have a good chance of lasting a long time w/ better quality drivers & crossovers than in the past but I’m not so sure about today’s complicated electronics. That remains to be seen. 

I have had  a Progression Integrated Amp in my primary system for about a year.  I have had no issues or problems at all.  I recently attended an event where there was a rep from D’Agostino, DCS and Wilson.   The D’Agostino rep gave me his card as a contact should I ever have a question or issue.   That may be just good PR but it made me feel more confident that they would stand behind their product.

I imagine it would be helpful to purchase any high end gear through a dealer that has a good working relationship with the manufacturer.   In my case, I have purchased all my equipment through Audio Concepts in Dallas who sells all the equipment t I mentioned above