@John-Cox I actually played guttersnipe in the now-deceased (thanks ballista...) grixis pyromancer. It won me at least 2 games at an EE where I could not attack through blockers for lethal. That does not mean it was good and this card is probably better in the same slot.
I'd like it to be good too.
The big problem I've seen with 1 toughness creatures is Walking Ballista ... as my piles of dead Eldrazi Mimics attest to ...
Of course if you had a Harsh Mentor out already ....
Or just play good cards like Null Rod instead