I own one and I must say I am pretty much satisfied.

- It works for me more than year without any problems detected, produces nice pictures in the available light. The focusing screen might be a bit brighter, but I can live with it.

- The only disadvantage I found is the X-Sync time = 1/30 sec, which is pretty slow.

- The main advantage is the price, especially when it comes to lenses. You can buy pretty good Zeiss lenses for less than $200 (I bought MC biometar 80, MC biometar 120 and MC sonnar 180 - all less than $200 on ebay (in excellent condition)).