I put in about 2,000 feet of it at my place. Over half of it was by myself. It's faster and easier with a helper, but sometimes also more frustrating. I was a huge fan of it from seeing it other places, but after about 15 years of it, I'm not such a fan anymore.
It installs pretty easily. I use a 12 inch auger and mark all my spots to drill with either orange flags, or orange spray paint used for marking the ground. I hve a 300 foot tape that I anchor in the ground with a long screw driver, then stretch it tight to mark a straight line. Once all my holes are marked, I begin drilling. I'm on my third brand of auger, and really like how well the Country Line brand works from Tractor Supply. Just be careful of it digging too fast and burying itself into the ground.
Even with everything lined up perfectly, the auger will move on you while drilling and you will have to adjust the holes manually with a clam shell digger to get your posts perfect. You will need a string line to make sure you stay straight, along with a post level. Once you get your posts set, installing the railing is fairly straight forward.
For gates, I prefer using steel square tubing the same size as the vinyl posts and welding on the nuts to the posts, with a hole in the post so the gate hangers can screw onto the nuts and into the post. Then it's easy to hang a gate and adjust it. Paint it white and it blends right in.
Overall, it's a nice looking fence.
The negatives are that it's not very strong. If you have any animals that will lean on it, or use it to scratch on, it will break. If you mow near it and through out a rock, the rock will go right through it. If you're rails are not perfectly centered inside the posts, when the ground moves in winter, the rails will pop out of the posts. I have two spots where this happens on my fence. My spacing was off an inch, and my rails are not quite inside the posts far enough for the factory notching to hold them in place. I've modified the notching and it's been working for quite awhile now, but I wouldn't be surprised if it happened again. Green mold, or algae grows on the shadow side of the fence. For me, it has to be washed with bleach about every five years. It's an easy process, but very time consuming.
I have added three rows of hot wire to the fence to keep my animals off of it, and predators out of the pasture.
I have too much into it to replace it, but if I could go back in time, I would probably just run field fence instead. Who cares what it looks like, I'm now more about function then looks.
One day I still might remove it and throw it away.