It's hard to think of anything worse than ZHEs. If suddenly some kind of problem happens (plumbing is broken, the pipe is leaking, the batteries are not heated during the heating period) - you can leave applications by phone at least a hundred times - you will not wait for the masters, only if you go yourself personally and almost by the hand bring them with you. The same applies to the maintenance of the house and the surrounding area - in winter, when the paths are cleaned of snow and ice, the residents themselves do it