Really very good part, worth it!

Although it is an expensive accessory, but fits perfectly and improves somewhat the handling, especially with heavier lenses. The best thing is that looking at the camera at any time without can be screwed on a tripod mount and Arca Swiss compatiblen that this does not need flashy and mechanically and optically disturbing plate. The camera is additionally protected mechanically from below.
In summary, using a well thought out and worthwhile accessory for anyone who heavier lenses and / or the camera occasionally want to screw on a tripod.