Overall gameplay is not changed on PC. Very rarely used to save a keep that is under siege and is called out in zone. If they drop the cost to say 5k I think it may start to have an impact on the game but 20k is just not something everyone can burn at will.
Dunmer Magicka DK, Argonian Magicka Templar, Altmer Magicka NB, Breton Magicka Sorcerer, Orc Stamina Warden
Breton Magicka Sorcerer, Argonian Magicka Templar, Orc Stamina DK, Bosmer Stamina NB, Nord Stamina Warden
Dunmer Magicka DK, Argonian Magicka Templar, Altmer Magicka Sorcerer
It basically just replaces bloodporting without the hassle and delay of finding someone to kill you.
Since they drop reasonably often in RftW, I don't expect to ever buy any.
These stones are the worst now we can teleport all over the map and completely take away all the strategies from end keeps and from back keeps. They should have a 2hr cooldown they are trash trash trash trash and so much more trash!!! Almost as trash as being in a 5 man group getting sieged by 15 players. More trash then faction swapping.