Agreed, good price. The other lenses for it are not cheap, though. So consider it more along the lines of a fixed-lens rangefinder, unless you know where you can find more lenses for it.
EDIT: A common problem with the G690 is the shutter locking up even though it is cocked. Symptoms are, you wind, wind, shoot (two strokes for the winder), then wind, wind, and press the shutter - nothing happens. You also cannot wind again at this point. Occasionally, you may be able to 'force' the shutter to fire by attempting to wind WHILE holding down the shutter release - obviously not optimal when that happens. The camera has a switch on the back for 'S' and 'R'. S is for sheet film (I guess) and you can test fire the camera body with it selected. R is for when you have a roll of film in it. If you select R and have no film in it, you cannot test the shutter, it just winds forever and never cocks the shutter or locks the winder.
In order to properly test this camera, you MUST put a roll of film through it. Have it processed, too, if you can. Check for film spacing.
It can be repaired if it has the problem I described, but a complete CLA for mine set me back three hundred as I recall. Worth it for such a great camera/lens combo, but keep this in mind.