A comment
Today, it is not a problem to buy entrance doors to an apartment, there are plenty of manufacturers and options, but as it turned out, there are some nuances. We pushed around with this when we started looking for a door for ourselves. It turned out that some have far production, while others have to wait a long time for installation, for others the design of the doors is not particularly different, there are some who need prepayment, etc.
As for Bastion-S, they have decent reviews from customers, and they promised to manufacture and install quickly, most of all they liked what they produce themselves, which means without intermediaries. We have a non-standard size of the aperture, this made it difficult when looking for a manufacturer, but in the Bastion we were able to offer a model according to our parameters. They installed it, having previously strengthened the opening, all the work took a bit - we arrived in the morning, and managed it before lunch.
All workers are trained, it can be seen, they work harmoniously and know their job. After three months from the moment of installation, no unpleasant moments have been revealed yet, the only thing is, I expected a slightly better level of sound insulation, but this is more likely my nit-picking.
pros
Most liked what they produce themselves.
Minuses
I expected a slightly better level of sound insulation.