As with many things, the idea is good but the execution is flawed. So also here. I will not go so far as to describe the grip strap as Poor, but one can not work with it. First, you can use the handle loop only with attached battery pack. If you want to use only the handle due to the compactness, a consuming disassembly is required. If you have mounted the GS is unfortunately the risk which is the fastening tape from the eyelet slides well, the material is too smooth. Furthermore, given that quickly loosens when taking pictures to get to the lower end of the release button of the battery pack, which leads to strong irritation. Too bad, because shortly after installation, the hand strap fits perfectly. The camera is great to keep with it and you het a secure feeling. With additional fixing the wrist strap is certainly a win, so do not. I sent back because otherwise I would have to permanently fix and then without battery part no longer using the camera. That does not make sense for me.
