I was on VV before you had to pay then gave up but have now just paid the £10 inspired by this thread.
I'm never going to achieve very much in the scheme of things with a damaged heart and taking huge numbers of drugs to keep my heart from killing me along with the defib-pacemaker but don't do to badly all that considered.
Here are my lowly stats;
77 tiles, average of 71.268 mi per tile
Max square 6x6
Max Cluster: 42
Most of my bike rides are short and not far from home so I'm focussing on the average miles per tile
It is a new metric I'm going to call the "Perfect Square"; being the Average miles per tile over total tiles. Mine is 92.55%. If get another tile it will drop to 91.36%, another ten tiles it would be 81.91%. This obviously doesn't factor in the miles you would ride to get any new tiles.
Out of interest, for you cycling warriors, what is your average distance per tile and "Perfect Sqaure % ? (post up your stats in the three lines above and i'll quite happily work it out for you if you want).
Also, how many have dropped Strava premium since signing up to VV (if you ever had it that is)?