Okay, there's quite a story to this answer.
When I first signed up, this was my first forum, so I didn't really know what to expect. I went around and answered topics, but I didn't do much more than that. I didn't really make any friends and I stopped visiting after a while. After a huge break, I decided to come back one bored summer day and I decided to post in a couple places. I thought it would be a good idea to post my fic here, join a club, write a guide or two, and before I knew it, I had a lot invested in this place. I'm starting to make friends and I visit this place very frequently. It gives me a place to go during my insomnia attacks, so that's always a plus.
This place is so diverse and it really has a different atmosphere than other forums I've tried out. This place is huge, but it doesn't feel all that big. If it weren't for this place I wouldn't be attempting to write at all, and I would feel a lot lonelier ever since most of my friends moved away for college. All in all, I sure am glad I found this place.
I was the exact same way when I joined. I never knew what to expect and honestly I am very surprised as to what all has happened to me here. So yes, I have a very high opinion of PC because everything about the place is fantastic. I love the diversity of the topics here and how you can basically have a thread on anything. However, the best thing about PC is the people here which are amazing.