Daily Tiffin food service for Office workers

I would like to know if it is good idea to have a tiffin service which means a takeaway for office people at nominal price of 10zl or so. Office people working have no time to cook food so do u guys think this could be better? Do an one knows any companies making or supplying food?

what would be the difference between this service and netkelner or szama?

There are quite a few in Warsaw. It helps to have contacts in companies to sell, since the market is competitive to say the least, but if your idea somehow distinguishes itself from the rest, give it a go.