The Myriad: I like these guys a lot. Musically, their CD sounds great, and they succeeded in working their influences (which seem to Radiohead and The Police, just to name a few) without directly copying them. Lyrics are fairly intelligent as well. Their CD graded at a "B+" with me, and right now it is my #11 CD of the year. It could have easily been an "A-" if it wasn't for a few songs that were a little on the dull side. Out of the three bands you mentioned, this is the one I recommend the most highly.
Monday Morning: I've heard a few songs and I have mixed feelings. I liked "Dear You" a lot, but didn't really care for "Sunshine" that much.
I'm with you on both counts.