Chica, no Mano critique??
What gives?! Sorry about that... It's tough to be objective about Mano, so I tend not to offer a critique about his work on public forums. But I'll make an exception:
As emcee said, Mano's gigs are not full of squealing 15 year olds. It's actually a mostly older crowd. I've never found anything remotely annoying about the crowd for his gigs (and I get annoyed quite easily). Maybe it was an older crowd in the area where I was sitting, but in all honesty, I could count the number of teenage girls present with one hand. Mano's song choices don't exactly appeal to the 15 year old demographic.
His music is, as people have said, very ecclectic. I'm quite fond of his original songs, and find him to be a very promising songwriter. He does mostly pop/rock, but he has a ska song, a ridiculously catchy club anthem, a power ballad (well...sort of). His voice is perfect for the type of music he plays, again, mostly Pop Rock. He's well versed in different musical stylings, and it certainly shows in his songwriting. He also has good song choices for the covers: Led Zeppelin, Stevie Wonder, Prefab Sprout, The Police... (he even did a Mariah Carey song at Ars Nova)
He is also an engaging performer, very charismatic and charming. He's self deprecating, witty and funny between songs.
Peter Foley's done a great job of directing these gigs, and they're a lot of fun. Definitely worth the price of admission.
You can go to Mano's Music My Space, and check out a selection of his songs. Judge for yourselves:
http://www.myspace.com/manophonic