Cottesloe is expensive, Tanja’s place is not, so travellers should work it out for themselves what to expect. I was unfortunate to be in WA when it was unseasonably hot and the recycling air conditioning didn’t cope very well. Not for a light skinned European who reckons 20+ is hot! I doubt any Australians would have a problem.
Tanja was a great host and I could not fault her. Her apartment was as described - small but perfectly comfortable. Thank you for hosting me.