I have an old Marmot Area 51 with that type of ventilation. Never really had it up in real windy conditions. It's not that great of a ventilation method. Best results when aligned prevailing wind direction. I've had the tent for 20+ years and it still in good shape. Hasn't been used extensively but it's seen some use.

Of course you're aware of the condensation issues with single wall. I use a little battery powered fan hung in the center to mediate it. Just avoid touching the walls is best.