I actually had somewhat low expectations for this product since I'm not a vinyl fence fan.  in the end, however, it came out looking really good!  The sections go together easily, about 5-8 minutes per section (after you get the hang of it with the first one).  I have 34 sections.  The posts go into the ground relatively easily.  Do follow the suggestions in the instructions for driving them into the ground - do it before attaching the post caps.

The only tricky part was getting the sections plumb since the posts don't extend down very far.  Fortunately, it's pretty easy to pull them up and re-position.

A small section of this fencing will not be stable.  The runs got stronger when I turned a corner, with posts running at 90 degrees of each other.  We'll see how it survives the winter, with snow pushed against it, but so far looking good and stable.