hp 50G build quality in today's standards (2018)

[John Colvin]

In my experience I would rate it as poor. I have had issues with two hp50g keypads.
The first one I purchased had three keys that did not work at all, and the second one, that I use now does not always respond to a key on the first press. In comparison,
my HP49G+ that I have had for 15 years has no keypad problems whatsoever.