After long hesitation, I started. Really no regrets. This is exactly what I needed. Just as with 2 batteries is still heavier, but it's extra side independence. Ultra convenient for vertical shooting but also horizontal thanks to a super grip. (I'm a big size 10 hands and I really appreciate the increased size of the device with this gripp). Manufacturing quality at the top. Thank you to AMAZON for very competitive prices, but also for the speed of delivery, 3 days after the order. Only point that can actually be discussed, the price offered by SONY compared to compliant. However I recommend without reservation.