I have to agree with Euphoria here. I have played a well equipped PR, and i can tell you that it can make wonders. It has marvelous crit damage and it is just cute when you oneshot an enemy.
To be a good PR player you need some prequisites:
-You must be a DE lover.
When you say archer in L2 everyone thinks to HE. You have to think to PR, because it is a real archer (I mean 1 shot usually means one death... it is sometimes true about PR and almost always true when we talk about reality.)
-You need good equipments (Like every other class) and you really have to be wise about deciding what skills to use and when to use them.
-You mustn't care about the opinion of others. From 20 people only 3 says that it is okay to play PR. Most of players never even think about playing PR because they see HEs everywhere. But in masspvps PRs pwn, They are very good at eliminating healers/buffer, etc etc.
Imo it is a really good and exciting class. It is my fav archer. I can strongly recommend it to anybody, because it is really fun