We very much enjoyed our stay at the farm. The owners were very helpful both before our arrival and after. The flat is very well equipped, with anything you might need. There are very nice supermarkets in Elzach (we went to ReWe) as well as a small shop at a petrol station close by. There is a bus stop very close to the house, in case you decide to use bus transportation. From the farm itself you can buy various things, such as eggs, cheese, various meat products, and even pasta and pasta sauce :-) Our apartment was up a few stairs, so make sure you check if that's important for you.
We stayed at the flat over winter for several weeks, due to work, and we have been very comfortable during the whole stay. The apament is very cozy and fully equiped! The landlords are very welcoming and gave us plenty information about Bremen and Borgfeld area. Borgfeld is a very nice town, with the main shops and Bremen city centre is very easy to reach by tram. The apartment has is own garden and the landlords were very kind to allow us to bring our dog. We strongly recomend this property and we hope to get back one day for a proper holiday.