As long as you pay using Paypal, their service will always get you a refund if anything goes wrong.
No matter if your money ends up in Russia or The Artic.
Shipping times may vary.
Always take a sellers reputation into account.
97% may sound good, but that's 3 unhappy clients each 100.
Some sell thousands of items a day (usualy large Asian stores) which meand that every day quite some people don't receive what they wanted or don't receive anything at all. But even then, Paypall is your pall