Sühac and Huga doors experiences

I have obtained a few quotes for interior doors and shortlisted the models from Huga and Sühac. However, I have zero experience in this field and cannot assess the quality. The Sühac doors are overall around 2500 euros cheaper than those from Huga. How can the large price difference be explained? I mainly want good quality and am willing to spend a few euros more for it. It would be great if someone could share their experience with the two manufacturers, as that would help me make a decision.

First this: "2,500 Euro cheaper" alone does not say much. For 3, 5, 15 doors?

Doors differ by the door leaf, the coating, and the fittings. "White" means, for example, white lacquered or foil-coated – with lacquered being more valuable.
The door leaf can have a core made of hollow chipboard, cardboard; the coating can be simple composite material or hardboard panels, for example.
The door hinges can be made of stainless steel, brass, or aluminum or of a cheap chrome-plated alloy ("Zamak", for example).
Locks, door handles... quality differences everywhere.

If you want to compare doors from different manufacturers exactly, you have to go deeper into the subject and look at all the details listed.
The place of production would be another point; Germany/Switzerland, EU, outside EU, China.

Hertweck is right, you have to give more details, otherwise an objective comparison is not possible. I can't tell you which doors are better, but from experience I know that Sühac doors are fine. At my home, I have the Sühac doors "Eiche Hell" model 0027 TB-LA-DA. I am very satisfied with them.