I wouldn’t necessarily rely on other people’s opinions of care homes, unless their experience is very recent.. A change of manager can do a lot either way. We’ve had to find care homes twice, , though because of dementia, so rather different, but visited a lot both times before we found the right one.
If there’s an Abbeyfield anywhere near, I hear from reliable sources they’re usually very good, and often cheaper. My mother was in a lovely dementia-only Abbeyfield for a long time. And talking of expensive, please try not to be influenced by smart decor. An aunt of dh put herself into a very ‘luxurious’ one for a month while her helper was away. But the atmosphere was dreadful, staff were surly and unhelpful - she hated it.
I’ve seen similar while looking for my mother and FiL - IMO ‘Homes and Gardens’ decor is often there to influence relatives who are choosing and will certainly not necessarily mean the best, kindest care. Cosy and homely, even if a mite shabby round the edges, with cheerful, friendly staff, is IMO what you want to look for.
And please discount any that want you to make an appointment just for an initial look around. I would always ring first, though, and avoid mealtimes, when staff are usually extra busy.
I agree with not bothering to de-clutter the house - just remove anything she wants to keep/anything sentimental, and let the house clearance people do it. As for the condition of the house, obviously it will affect the price, but there will always be people looking for a doer-upper.
Good luck and all the best.