I had several jobs done by them and they always ad...

I had several jobs done by them and they always advised me well, of course always asking for an offer and discussing it together .....
Furthermore, I had some problems with existing systems during the works and they were "fixed" at no additional cost.
Of course the prices are what they are but on the other hand, comparing to "Swiss" firms, it is one of the least expensive.

Not perfect but good experience, I recommend