Good, it sucked. I've only lost saves with GFWL and it seems like it's more of a bitch to deal with logging in and stuff than Steam or even Origin.
That's true. It's a pain in the ass to deal with for setting up. Once it is set up with auto-login though it goes relatively smoothly: seamlessly launches the game and relatively non-intrusive. That doesn't set it apart from other services though, it would be like giving it credit for something it's supposed to do (or not supposed to as the case may have it).
Capcom seem to be obsessively clinging on to GFWL for their gimped PC releases.
Conceptually, I like GFWL: it's a service that launches only when the game launches (it doesn't need to be open separately), it stays hidden away until you want to bring it up, and it sorts out online features through a unified infrastructure. Conceptually that sounds like a solution to many problems for both developers and consumers. In practice? It doesn't seem to work the way it was imagined, especially not with its rudimentary delivery system e.g. patches/updates, DLC, and even digital purchases.