Looked like a solid play to me. Other than the BB you've only invested 150 in the pot. Plus, when your money did get in the pot and got called, the guy went all-in. Imo he either had a hand and was hoping one of you would call him, or was on a draw and semi-bluffed; I doubt he was straight bluffing.
Either way, since a lot of hands out there have you beat or up against a tough draw, and you've still got one to act after you, I'd probly tip my hat to a nice bet and fold.
In hindsight of course.
