Well, in my opinion SSAA is always better than no SSAA
Yeah, some people say it's blurry but I don't think so (maybe they're doing it wrong?). It improves texture quality a lot and if it needs to be sharper you can add some sharpening to the downsampling aswell as mess around with the sample offsets.
If done right it can look sharper than the original image, especially the texture filtering I was talking about:
no AA vs SSAAfull image no aafull image ssaa
