Saved up 6 months of upgrade stones, all used,didn't get the upgrade, now lost power, had to go back a whole map so I didn't need another 1000 pots every 5 mins. I spent roughly £300-£400 to get those upgrade stones so my advice is to avoid unless you don't mind paying for someone else's Bentley. Thanks but no thanks. What a ripoff money grab. Too many of these around today, totally ruined my view on these games. Will probably never play another. Thanks for robbing me. Zero stars. A-holes