"Fallen Hero" and "Desert Crossing": I wouldn't say either were best-of-the-season material, but neither bad either. Just "fine" - I do hope they get to Risa after having two delays though!!
I know I'm nearing the end of season one, and I have to say, it has had a fantastic "batting average" of good episodes. Probably the best start to any Trek series in terms of "excellent" to "good" to "okay" to "poor" episodes.