The lowest number of bids you can set in Auto-Bidder is 2 bids.

The upper limit must be at least $1 above the current highest bid.

The upper limit must be at least $0.50 above the lower limit.

Auto-Bidder will only kick in when the remaining time is less than 10 seconds and the timer will extend for another (up to) 20 seconds.

To ensure fairness to other bidders, Auto-Bidder will kick in at a random time in the remaining 10 seconds.

To ensure that every token is used effectively, Auto-Bidder will NOT kick in if you are already the highest bidder. Other bidders are still allowed to out bid you even if you are the highest bidder.

Unused tokens from Auto-Bidder will automatically be returned to you.

Auto-Bidder is most effective when other bidders are not using it.

You can check the auction detail page and look at recent bid history. Bid history will tell you if the other bidders are bidding manually or using the Auto-Bidder.