I think it'll be around for a while but it's definitely in a strange place. Some of the pages like the signup page and checkout settings page ( https://checkout.google.com/inapp/merchant ) just give a service unavailable error half the time, and it's been that way for months. And in the merchant center, the 'Business insights' section doesn't work and hasn't for months either. Last week we couldn't access our order history for a few days. The sandbox payments environment doesn't work most of the time either, and even production sometimes has errors loading the payments screen.

It's also really limited in that there is no API to get order status to check if a subscription is still active - so if you miss the cancellation postback, you have no way of knowing which subscriptions are active and which aren't. You also can't change the value of an active subscription. That was the biggest thing people were asking about when they introduced it at IO three years ago, and it's still not fixed.

So if you are in a country where you have a better option you might want to consider it :)