I pay about 7-8% in fees, but i don't mind when this is the only option to buy some coins instantly.
So why not just use coinbase? You can transfer money from Paypal->Bank->Coinbase. After a few transactions, you can put a debit card on file and instantly buy up to 10btc. They will gradually extend your limit until you get to 40btc or something like that. Always remember: Bitcoin and Paypal do NOT mix. Ask anyone around here. I personally have been duped for almost $1800 and got nothing from paypal but another smack in the face. Not worth it.