I just started shooting my Bronica SQ this very weekend after an over 20-year layoff!!! For people interested in medium format film, I have to say, the SQ is a pretty good option these days; the cameras were designed simply, without a lot of complexity, and there are plenty of fairly modern accessories and lenses readily available. Backs with inserts are common for 120 6x6 cm square, 6x4.5 cm on 120, 35mm panoramic, and I think 220 (longer rolls, more shots per roll, more frames per reload). I do not know the seller, and have never spoken with him, and am not endorsing his offer, but just wanted to say: the Bronica SQ is a FUN and pretty easy-to-shoot medium format rollfilm SLR, and the 150mm f/3.5 lens is a nice portrait/scenic type lens of pretty fast speed for MF: most 150's were f/4. The Zenzanon lenses have wonderful bokeh rendering, AND each lens has its own electronically-timed Seiko interlens shutter, and they seem to be pretty well-made shutters. Changing lenses is super-easy, as is adding a metered prism if desired.
There's a nice X-synch port right to the top left of the lens, and even if the camera's battery is dead or absent, the shutter will STILL FIRE at 1/500 second, so you can always shoot pictures using daylight and a wider aperture, OR electronic flash shots with the mechanical speed of 1/500.