Delphi parts are good and are considered to be of very good quality.
Delphi parts are often recommended as after market replacements for OEM parts.
I use Delphi parts and find them to be great parts and are just as good as the OEM parts but a bit cheaper.
Delphi makes durable and reliable parts and most particularly suspension parts and steering parts.
Delphi has an OE "original equipment" quality guarantee which means that Delphi parts are designed to meet and exceed the standards of the original equipment parts used in the vehicle.
Delphi parts are also known for their long lasting performance, especially when compared to some aftermarket brands.
Delphi has a commitment to OE quality and ensures that their parts are manufactured to the same standards as the original equipment, providing a reliable replacement option.
Delphi is also most particularly well regarded for their suspension and steering components like sway bar end links and ball joints.
I've been using Delphi parts for years without any issues.
My dad who was a mechanic but now retired also has used Delphi parts for a long time on his own vehicles as well as many customers vehicles with great results.