I have NOT had good successes with Open Signal Maps site locations. Not in any market I have traveled. Many times OSM will show a real tower, and then people assume because it is a tower and OSM shows it is Sprint, they assume it is therefore accurate. However, in many of these instances, Sprint is not even on the site shown.
However, OSM gets it right occasionally. But so does a broken clock, twice a day.
Robert via CM9 Kindle Fire using Forum Runner