Prefab house year of construction 1993

Hello, since I couldn't find any information anywhere, I'll try it with you

My girlfriend and I currently have a house possibly in prospect.
It is a prefab house built in 1993.

Basement: solid construction

Rest: prefab construction
(Enclosing walls: wooden panel walls, wall structure from inside to outside: fine plaster, Sto insulation, Fermacell, timber frame construction, thermal and sound insulation made of stone wool, vapor barrier, natural gypsum.

Interior walls: wood composite construction as large wall element.
Wall structure room by room: natural gypsum, timber frame construction, thermal and sound insulation made of stone wool, natural gypsum)

What is your opinion on the walls (keyword insulation)?

Prefab house manufacturer: Sauerland Fertighaus Ringler GmbH
--> Can anyone say anything about this??? I've never heard of the company...

How are prefab houses from this year of construction? Regarding lifespan, substance, etc...
So far we have only gathered information for a new build, from Weberhaus.
I don't know what the state of technology was back then ...

I would be very grateful for your answers.

Kind regards

I have an expert report on the market value of the property. From that, I had posted the excerpt about the walls.

(Umfassungswände: Holztafelwände, Wandaufbau von innen nach außen: Edelputz, Sto-Dämmung,Fermacell,Holzfachwerkkonstruktion, Wärme-und Schalldämmung aus Steinwelle, Diffusionssperre,Naturgips.

Innenwände:Holzverbundkonstruktion als Großwandelement.
Wandaufbau-Raum zu Raum:Naturgips,Holzfachwerkkonstruktion, Wärme und Schalldämmung aus Steinwolle, Naturgips)

I thought from that you can say something about the quality. Likewise about the year of construction and how advanced the houses were back then ...