I've had a white PVC fence for about 6 years now with no problems. I
do get some algae in shade, but that's after the winter season. In the
spring I usually just clean with a little bleach and soap and a brush,
and its fine for the whole summer and fall. Mine does not fade. Not
sure what you mean by "not mature enough", it's been around for a
while.
You will definately have a lot more maintenace if you put up a wood
fence.