Yep got a big deck in the back garden with the Eurocell Hollow composite.
Looks really good although chairs etc can ‘scratch’ the surface. Ours was double sided with wood effect one side and simple grooves the other.
Uses hidden clips which were a pain as I laid the whole deck and then realise the final bit was not going to fit so had to lift it all and start again with slightly different spacing – I was not happy.
Didn’t bother with the edge/step profiles and just used alloy angled trim based on advice from the local branch. On some of the vertical surfaces (steps) I had to drill and use visible screws as there was no way round it. You have to be very careful as the decking is brittle and will crack.
Overall, more pain to fit than wood, costs more than wood and I’m still happy we did it.