I Thinks Google Webmaster tools give you the Perfect idea for where your Links is posted or broken links, Search Terms etc. it's very useful for every site owners. and i am using it's since last 2 years. But some times it could be happen that it's will tack some time for updation.
Yes, Google Webmaster Tools is fantastic at picking up crawl issues! You'll find, as I have, that once your correct the crawl errors it can take up to 6 months and sometimes longer for the index to remove the errors from your report. I have been using Google Webmaster Tools for at least 5 years and I'm curious if these tools are an indication of how up-to-date are Google's algorythms.
Hi! they are the no. 1 in market, they are providing free service that's why you are facing problems there are number of users using these and some are misusing it also. So try to have some patience, they are working on it as Gmail is not that good in starting, and Google's other services also but they making little changes and people can't ignore them. We are addicted to there services. All I need to say have some patience, it is not going to be worst because they are best and trying to deliver best services on web.