My late father was in a BUPA care home in an affluent Cheshire village and having looked at many very dispiriting homes before I settled on this one I was hopeful that things would work out well. Not so.
There is a real "fur coat and no knickers" dimension to many of these places, especially at the top end, with lovely reception areas and chandeliers masking a "profit before care"mentality. Recruitment and training is key, and in our case the staff was a very mixed bag, with two or three excellent nurses and care assistants (all of whom have since left) and some absolutely dreadful ones.
My father suffered abuse, particularly by the night staff, who would ignore his calls for assistance. One ripped his call bell out of the wall in anger; another two ignored his pleas for pain relief, forcing him to call me (thank goodness he had the capacity to do so) in the middle of the night for help. They also made some near fatal errors of judgement which led to an emergency admission to hospital where he remained for three months. Inadequate staffing and training led to poor hygiene practices, and my father ended up with MRSA.
Everything is done on a shoestring: for several weeks there were hardly any teaspoons in the building; trays and crockery desperately needed replacing; they never had enough stock of thickener for those on modified diets, putting them at risk of choking or aspiration when they ran out; broken items weren't fixed, cleaning was minimal (my father's stained sheets were still on his bed when I called to collect some of his belongings while he was in hospital, three weeks on).
I could go on but hopefully you get the picture. Do not be seduced by the appearance of a care home; look beyond the chandeliers; talk to the visitors if you can; quiz the manager; take advice from social services/your gp/hospital nurses; be a strong advocate for your loved one. The system is very broken, but we often have no choice but to use it. There are some good homes out there but you need to be diligent and wise in your choices and even then monitor care very carefully. A big brand doesn't automatically mean quality.