I saw previews for it. Was it good?

It was good. Frasier broke up with Claire so he could go after Lana, but Lana's ex-husband came back, so he ended up alone (again). The highlight of the episode was where he went to a cabin to do some thinking, and there was a fantasy sequence with all the women in his life: Lilith, Diane, Nanette (his first wife), and Hester (his mother). There was some wonderful continuity with the "Cheers" days, when Diane exclaimed to Hester, "You tried to kill me!" Too funny.