Well, with the limited data provided, it certainly looks like the kind of deal that most of us expected/hoped they would be making. Looks to be priced competitively, overlaps with an existing area of operations (think synergy) and isn't terribly large (lower risk, easier to integrate).
Accretion is probably minor but hey, every bit helps.
One would think the risk of an SPO increased. They didn't mention anything how they would pay for it in the press release, so I would look to the SEC 8-k filing to see. Typically, MLPs borrow from their credit lines initially and then do an spo to pay down the credit line. They also may be waiting until they announce their earnings in the next few days in the hopes that there is good news there that will boost the stock price and allow them to do an offering at a better price. With all of these deals and distribution increases, they really haven' t been able to raise the stock price that much which is a key to doing more accretive deals.