I have used some of this in the past in varying area’s. It does need to be well stuck down and tends to curl at the edges if full sun. But with care it can be quite effective for smallish area’s. Larger lengths have been used around the edges of my Pond to soften the edges. As you can see below it takes on a Darker Green when always in contact with water and happily encourages Moss to grow on it. Also some Water Grass has found a home within it.
We used some on the Ruschbahn towards the back of a large Concrete Mountain. It was edged with Conctere Strata and Rocks making a very effective Mountain Pasture. Sorry no pics of this a long time ago now and the Railway sadly demolished 7 years ago.
A couple of area’s where it has been used in pretty well full sun. You can see the curing effect. This has been in place getting on for 5 years now and it has taken a much more realistic colour about it