Should I use a buyer's agent?

[Harry Mishkin]

I've bought homes for myself in the past, so I am not totally clueless.  I am just starting to actively look for my 1st 2-4 unit mf and have found a listing I'd like to pursue.  I know a buyer's agent whom I trust.  But are there advantages to dealing with the selling agent directly?  For example, would the fact that they do not have to split the commission make an agent more likely to encourage an owner to accept a lower offer than if a buyer's agent were involved?