Well the upside is its branded well, has great functions and usability over BTC and ABJ =). Oh and the price is doing rather well. Not to be confused with Dashcoin (DSH). The downside ,well its a punt like any other crypto and the evolution wallet is stills a bit away.
Dash for me is on a up due to being a cheap alternative to BTC and good pr press and game plan. Ie the users it wants dont know a thing about crypto but like paypal. So Dash is like the silver to BTC gold.