I never saw those guys live, but as you can tell from the above they were obviously a lot of fun. The new album, on Omnivore Records (where it belongs) collects pretty much everything they did in the studio between 1974-79 (plus a pre-Mumps track featuring future Willie Nile/Patti Smith Group drummer Jay Dee Daugherty) and has lots of cool photos plus reminiscences by Hoffman and ace drummer Paul Rutner. You can and should order a copy of it at Amazon HERE (including a vinyl version); you can also get it directly from the Omnivore site HERE, along with the track listing.
PS: As I said, I never saw those guys live, but I did see The Swinging Madisons, a band fronted by Hoffman some years later, that was one of the greatest things ever. I've written about them previously; it's a very interesting -- and also poignant -- story, and if you missed it when first posted, here's the link; I think you'll find it well worth your time.