I've played a lot of "Leningrad Bird" games (where I played like the Leningrad Dutch with colors reversed) on the site, and I also played the Antoshin variation (f4, d3, c3, then Qc2 with the idea of 5. e4), and I have done reasonably well with both.
I once played the Leningrad Bird in a 4 round G/60 tournament in Daytona Beach, and I had the rare pairing luck to draw 3 whites out of four, as I was paired up and the higher-rated players got their due colors. I went 2.5 out of 3 with the Bird, and gained 101 rating points in one day.
Somewhat flukey, and hardly a decent data set overall, but I think it's OK. It certainly beats playing against the Berlin Defense for winning possibilities. Openings are just the initial serve, and most of the time you have to volley well regardless of the initial moves.