So as far as episodes go where the killer is known from the beginning, this episode is pretty much on par. They're not my favorite, but may arguably add some ability to re-watch more than when the killer is revealed.
I do enjoy season 4 having a couple of final Tyler episodes. I enjoy Tyler and Conrad and it's nice to have a small feel that they both have careers that allow for multiple employers and are not monopolized by the Matlock firm and that the firm can alternate between which investigators are used - but sadly, it is short-lived.
Another review placed this episode in a light of not being in line with current cultural and societal norms - however, I find that laughable, specifically since the review was written over 20 years after the episode aired. I admit, I do find it interesting to see the different standards in Hollywood of the 90s vs now - at least on prime time television. So I agree that the views and morals are certainly different than today (are there any "lines" to be drawn anymore in modern storytelling? Pretty much anything goes these days). Again, interesting from a historical standpoint to see the changes and what may change in the next 20 years.
Overall, a good episode to see Michelle have some character development and know a little more of who she is and what she stands for. Also nice to see her own expertise shine.
I wouldn't call it one of my favorites, but certainly a must see if you've not seen it.