Services are really never safe. Or at best, they should be considered temporary. If you like what they provide, know that what they provide could become worse and/or more expensive. This is the likeliest scenario.

At best, you should use services on a temporary basis and never allow yourself to get entrenched. Once you're locked in, you are part of the product to be sold to advertisers. The "install base" that is used as leverage for these sorts of shenanigans.