Google just shut down Picassa and you expect people to trust Google again and move to Google Photo ? Google should build trust first and foremost. Anybody who would still rely on a "non core Google product" at that time risks nothing short of a big disappointment.

Api,services are being shut down and this time people don't even have 2 months to move. Picassa and Google Photos are 2 different products, if people stuck with Picassa there must have been a reason.