I can usually overlook one of the two being less than great if the other is good enough to make up for it, though with both the art and the writing there is a level at which it's so bad that no matter how good the other half is I find I can't really enjoy the experience, and I just put it down...
Yeah, I must echo the above. It does depend in large part on how I am feeling when I become aware of the update, and whether or not I've got something else to do at the time.