When you have a good actor, you need to keep them. But sometimes good actors don't seem to stay. This episode was some what scattered, focusing around the personal life of the characters and trying to build a story which didn't do SGA justice.
Carson who is one of my favorite actors ends up being taken out by a tumor bomb! Yes it sounds wrong, but this is what the script writers came up with and in a way this is rather annoying. Alas Carson did get to save the other guy's life, but in the end he lost his own.
Other than seeing a few flings and talk of coupling "Sunday" was a chill-out episode that should be delete. For it doesn't fit the gene of Science fiction and became a seriously bad filler episode.
The final ending scene brought a reality back that Carson is now gone. But what annoys me more is the fact in the time line, Carson lives on.
One can only hope, that things get better, because at this rate you can only loose viewers.