I never used Pokevision because it needed a laptop to use and it just seemed like a chore to use it. That being said with as -blam!-ed up as the tracking is in the actual game it was the best option. Now with the site down and the tracking essentially shut off in the game there isn't a reliable tracking for anyone which is really stupid. Niantic should have fixed their shit before shutting down something the community created to fix a broken system.