I've had my ETRs for a while now and have been very happy with it. My lenses are 40mm, 75mm, 150mm, and a 250mm. I have been very satisfied with the whole system and have only had to have the body serviced once a couple of years ago. The lenses are expensive as they are all leaf shutter (Mamiya lenses are cheaper). When I bought my ETRs I also looked at Mamiya's line but they didn't have interchangeable backs on their 645's until a year later and I wanted a body with a couple of backs because I do change from colour to B&W in the middle of a roll.