Pros:

• Hugely important to the Steem ecosphere! Once people realise they can transact without fees, this could cut right into Paypal's market share.
• Payments are instant which means the business can spend their SBD instantly on stock, solving cash flow issues businesses often face.
• This app could help power many, many other developments for the Steem blockchain.
• Microtransactions is where crypto needs to get to be taken seriously.

Cons:

• Only converts to KRW at the moment, once USD is added, this could absolutely explode.
• It's not an app at the moment, so might be slow for some users.