You will get 3 free snipes with this service, then you need to buy credits :)
Step 2
After signing up with your email, you can link your ebay account to the sniper account per instructions (very easy).
Step 3
After linking accounts (ebay+sniper) you will add the auction ID of each auction you want/need to win. The sniper will bid for you in the last few seconds of each auction.
Unless someone else is using the same tech or outbids your highest price, you will pretty much WIN every auction! So cool....