The memorial was pretty good, although it was the postcard at the end that really got me. As a side note: I am a little surprised it got there, since he seems to have gotten her apartment number wrong (yes, I am nitpicky enough to notice that).
I think they handled things as well as can be expected. There’s a razor thin line between tribute and exploitation and, for me, they managed to stay squarely on the tribute side, so that was nice. Hopefully, it gave the cast (and the audience and anyone else who might have needed it) some closure, both for the character and the actor.
Add me to the list of people who were impressed that Ernie Hudson and Mercedes Colon (who, I believe, plays Frost’s mom’s girlfriend/wife) came on to have such minor parts. I always think that sort of continuity adds so much to an episode, especially one as heavy as this one. Very classy.