Analyzing your segment effort is back, and it is better than ever. Thanks to some stellar work by The Doctor, as well as many other Strava engineers, it is now easy to compare your recent effort to a personal best or the KOM/QOM. To access the new segment comparison page, just go directly to a segment page or click on Compare from a segment on your activity page. From here you can click play and watch the segment effort unfold.
This tool makes it super easy to analyze where you are ahead or behind; critical to seeing where on a segment you can make up time. Premium members will be able to analyze up to five efforts at once. This can either be against other people or against your previous efforts. I really like being able to review my past results on segments I regularly ride and utilize to gauge fitness.
For a little more information on this new feature, check out this Strava Knowledge Base article.