Had a good look at it a while back and I if I remeber correctly all in price wasn't that different from acrylic EWI sys. , though those seem to have gone up quite a bit recently
I like the idea of the 'through colour' nature of the acrylic finished, hopefully reducing future maintenance
( though I usely use the 3 coat sys. so not really true single coat through colour)
But then if you're not painting it , or going for a cast finish then this isn't an issue.
How about weight of the finish on the thicker insulation , would this be an issue ?

I guess not, just like the trad. expamet type mesh for rough cast over timber frame etc.

Looks good, particularly if you want a heavy cast finish, i find the polymer renders bit chiselled and formal, still it would have to carry a lot of weight? And that’s down to the adhesive on the insulation?

Worth checking the costing though Mike , before you give up on the idea . I think the pirce i was looking at was for stainless mesh , not galv , which was cheaper .

With acrylic renders, we've abandoned the cast iron rule of ventilated space behind the render, simply because it's been done without for decades on the Continent without trouble - may even be Agremented here. But Rendalath offers no such hope, so on the face of it has to be done 'the old way', with ventilation. It's definitely a 'modernised old skool' product, not part of the new wave. That means cost and detailing, not like for like.

Oh yes, as ordinary render would be - I thought you meant in the EWI-like situations we're all doing - or onto sheathed or unsheathed studwork.

I have done several jobs 25 years+ ago with a product called twillath, very similar.

In those days I was considered mad to be doing EWI with 75mm of fg batts. large head nylon fixings and 3 coat render, no air gap, even wood beaters top, bottom! and round openings, 3 coat render.

No problems to this day with any of it, spring indoors arrives a month early and winter 5 or 6 weeks late.