We've been trying to get Haywoods to do repair works on rising damp and black mould in our flat for years. Each time they send a 'cowboy' maintenance team that doesn't seem to know how to use a paint brush, let alone work out what they supposed to do. Sales & Lettings Manager is useless and does not respond to the emails, phonecall and then pretends she never get any messages. Our neighbours also had problems with them and had to threaten with legal action.
Don't get fooled by the look of the flat when you first see it. All issues are 'painted over' and it's usually winter when you see the full extend of the problem. We've seen it first hand few times already.
The boiler also packs up every winter, nothing gets done about it. They used to have a great reputation and brilliant team years ago - avoid like a plague now!