We are sorry to hear that you have had a bad experience at our place - especially with your car- Graham, and contrary to all our positive feedback left by hundreds of people stayed with us. We tried more than once to ask if everything was OK while your staying as we love see people leave happy about their stay but nothing has been told to us, as we could have consider your disappointments during your staying.
However I will go through step by step to your feedback trying to answer at all of them.
This area is pretty quite and we never heard about any criminal/offensive damage since we live here, However The car park is public and not private, as showed on our profile.
The Wi-Fi runs pretty well in every room, especially upstairs with a secondary power modem and we don't know how that can happened(first person to mention this issue).
TV has been removed from our package as we are waiting for a new one.
Not smoking house stays for not smoking inside the flat but it is allowed for all our guest to smoke outside the rear garden, however we will make sure to smoke outside the flat because of the two windows above the rear garden(once again this could have been prohibited while your long term staying).
Although the English language is not our best skill we always try to find a way to have a conversation or at least make sure that our Guests get what they need, often going though language barriers and never leave anyone unhappy with us.
Thank you once again for your staying and for your feedback that will be further considered, wishing you best luck with your new adventures on air bnb.