I happen to know the CEO. They are working hard to improve the issue of spotty coverage. Now that the legal status is, for the most part, behind them, they are pressing on tower by tower.
I was thinking of moving to Wind too. Since GTA is good enough coverge for me and with unlimited talk, text, and data (can tether for your laptop) the $29/mth plan for first year is great. It jumps to $45 mth after year one from what I undderstand. So 3 years average of will be $40 per month can't be beat by the big 3 for all things unlimited.