In this task, you're given reviews from Amazon's products. Your task is to generate the Summary of the review.
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Question: Cam tensioners work great - pretty impressed with fit and snug - did not slip. Only disappointment was that out of the 4 used - 2 had failed at the heat treatment at the ends of straps where they are cut to size at factory - that's 50% resulted in frayed ends from straps being used the first time out - mfr needs to apply a better heat treatment to strap ends to correct this issue - good buy - but before you use the straps - hit each end up with a lighter or heat gun to seal the ends first!

Answer: Seal the strap ends before use - or they will fray

Question: Update: product broke after only a couple months of use after a particularly sunny day. The stem (which holds the phone grip to the base) came out and won't reattach. The adhesive on the base appears to be good only for one application. This product is really good (fantastic even, for Android users - more on that later.) It has two mounting options out of the box: Dash mount and vent mount. The dash mount option is surprisingly excellent - it comes with a really sticky adhesive that really does grip most dash materials, making for a great alternative to hogging an A/C vent in warmer climates. The clamping solution is great: Its electronic, and thus, automatically opens when your vehicle provides power or when you touch the bottom of the device. It automatically closes when your phone is placed against the back plate, touching the aforementioned bottom piece from within. My only "complaint" is that the device doesn't automatically open when power is cut to the mount. When I pull the key out of the ignition, power is cut to the mount, leaving me to have to "extract" my phone by "pushing/sliding" it up and out of the clamp surface. When power is restored next, the device opens up again.

Answer: Broke after a couple months! Stable mounting options. Innovative clamps.

Question: Product arrived with 3 of the 6 broken. And 2 of the same color not all different colors as shown. This was supposed to be a stocking stuffer gift for my son so I really disappointed that it arrived late and broken. To make matters worse this product is not able to be returned. NO STARS!

Answer:
This was supposed to be a stocking stuffer gift for my son so I really disappointed that it arrived late and broken