Porcelain is very much in vogue at the minute and for good reason, it offers great variety and aesthetically looks very clean and crisp. Word of warning on install though, its a 0% tolerance material so requires a completely different laying approach compared to natural stone. i.e. its a precise tiling job not a traditional mucky slab laying job. This will be costlier.
Thank you @McRazz I realise there will be a cost but if I slip I'm done for. Also won't be able to clear lichen, wet leaves whatever so biting the bullet. Taken note of your comment about accuracy (known by my children for obsessive behaviour for most things) and I have a costly, but very good, builder lined up who did my daughters patio to my satisfaction Just need to get him here as he is very busy so fingers crossed I can get it done before I want to sit outside again.
"The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it." Sir Terry Pratchett
If these are your concerns then granite would actually be a better option. Flamed or fine picked granites will have a higher slip resistance (PTV) than porcelain. According to my records we've recently tested porcelains all to a PTV R-Value of R11 (average) compared to R13 (highest) for all the flamed/picked granites.
That being said any reading above R11 would likely go unnoticed.
Both stone types would be similarly low maintenance too.
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I did look at the wood-effect porcelain and found it hard to believe it wasn't real wood.
Extremely realistic
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.
https://www.londonstone.co.uk/
Porcelain is very much in vogue at the minute and for good reason, it offers great variety and aesthetically looks very clean and crisp. Word of warning on install though, its a 0% tolerance material so requires a completely different laying approach compared to natural stone. i.e. its a precise tiling job not a traditional mucky slab laying job. This will be costlier.
Razz.
That being said any reading above R11 would likely go unnoticed.
Both stone types would be similarly low maintenance too.
Best of luck.