Yes, our service will work with Dutch auctions. You can choose how many of the item that you want when scheduling your snipe.
Keep in mind however, eBay proxy bidding system is not used for Dutch auctions. So, your maximum bid will be registered with eBay immediately, not raised only high enough to be the current high bidder.
Actually, with Dutch auctions, other people bidding can help you. If no one else bids, you will win the item(s) for your maximum bid amount. If someone else bids on the auction, the price would drop down to the lowest common bid amount.