Pros: It works well and greatly increases the memory storage of my new phone.Time will tell but according to the specs. it should work for a long time.

Overall Review: I would recommend this product for wherever this size of memory is required.

Pros: The programmable / dedicated external button on the side of the phone is a real good idea versus only having icons on the home screen. Another cool idea is the "read what's on the page" feature that is a turn on or off feature; handy for when you can't be hands on and see the screen to read it. The phone connected automatically to my 4G LTE service once the sim card was installed correctly to make connection in the phone (see 'cons' below). Another plus that wasn't advertised is that the phone is dual sim card capable for those who may wish to have a tougher phone choice when traveling. As advertised, the battery appears to have a real good life going a long day with average use with power to spare. If you like to play at work the battery goes down faster when browsing / viewing videos but it will still likely last you the 8hr. day at the job and then some.

Cons: I would have liked to see more of a raised protection around the edges of the screen for more cushioning in event of a fall but it does have impressive credentials never the less. The sim card tray seems to have to be pushed back into the phone just right or the sim card won't connect (even when placed correctly into the tray as some of the advertising mentioned). I had to remove and reinstall the sim card tray and then wiggle the end of the tray before the sim card made connection inside the phone. After that it was off to the races and it hasn't given any trouble with not connecting since. The rubber covers for the charge port, ear bud port etc. are quite 'stubborn' to open for access but that is part of the 'waterproof' ability of the phone so as the instructions say always be sure to close the covers correctly to keep water and dirt out. There was a real lack of instructions for using the phone and getting it set up BUT... the onscreen instructions were real good and that was all that was really necessary to get things going. There are instructions etc. available on-line but I've never needed to check into that yet. If you depend on your phone to store a lot of information then the 16 GB of ROM is likely not enough BUT... with the additional 128GB memory card that can be added you have a phone with double the memory capacity of a lot of the average phones available on the market.

Overall Review: I bought the phone on sale and believe that I got real good value for the money spent. I bought the phone for someone who has mobility / dexterity issues with their hands and as a result the phone gets dropped quite often. I believe that the combination of the rather 'grippy' outside of the phone combined with the "shock-proof" rating will make this a much better choice of phone as compared to the average smooth, slippery, phone even when that is put into a 'protective' case.