ESPN Auction Draft App Review?

My 12 team PPR re-draft home league uses ESPN. We’ve always held our AUCTION off line, with me as commissioner, acting as auctioneer and scribe, as well as trying to draft my own team.

I’m looking at using the ESPN App / Online AUCTION tool this year.

Does anyone have experience using it for an Auction? Anything to watch out for, or easy to run as commish?