I've been using this handy little app for quite some time now, and have never had a problem. I had enough faith in it to set it for an auction I ended up winning...a rare guitar that cost me close to 3 grand. I had it set to bid in the last 3 seconds, and it did just that.
I hate to "snipe" but if you really want an item other people really want, you don't have much choice because everyone else seems to be using some type of sniping software. hopefully this update will address any issues of which I have had none but I haven't had to use it in a couple of weeks.