200 or 250 sqm doesn’t necessarily make much difference for the electrical work. Usually, all the rooms just have a bit more space and 1-2 rooms are on top. That is hardly any additional effort electrically. I think sqm values are not necessarily meaningful in this trade. The price here is a bit expensive but still acceptable. Are the spots including the light bulbs? Depending on what you got, that’s already a few thousand going out for that. In addition to the relatively expensive installation of the boxes in the ceiling. You could save on the underground cable. You can get that at any hardware store or online. Give a 20er to the electrician on site and invest the 250€ savings into the holiday fund. Also save a bit, although not necessarily much, on the USB sockets. I think they cost about 10-15€ from Gira in the standard program. Either install them yourself or just give them to the electrician on site as well. Whether he installs a normal one or one with USB makes no difference. The same story with the thermostats. I assume you have them upgraded? If so – then check the price yourself. Also talk to the people on site when installing the devices.