Here's 3 VTS1 videos. One is vs tigga (end result, a draw as tigga snipes a command truck en transit), two are vs a > 1700 ranked elo player that happen back to back. I lose the first (again, sloppy with command trucks, I have issues I know) and the 2nd happens immediately after. So he knows exactly what's coming and tailors his defense accordingly, and still gets crushed.
The beginning/rush portion of these replays is pretty consistent across every game I've played. The only loss I've had was against Stubborn, and even that wasn't really a defeat
Just watch the replay and said "I need to make a test by myself". Make a new deck with some unit you use and try it in ranked vs a 1700+ guy.
This little marder are really a good pick ! Maybe a +5 point cost ? But don't really know, Just a one time test, need some sleep