This happened to us and we didn’t feel like it served us, as sellers, well.
“Our” listing agent was more focused on collecting both sides of her deal than assisting other agents who claimed to have offers coming in. We were relocating for work and wanted to get going. This was back in 2009 when the market was sinking. We couldn’t shake the feeling that she was too attached to the buyer.
On the buying side, we got a taste of it again when a seller’s agent put our first-in, full-price offer aside and made an in-house deal, over the weekend, without a counter.