[T-Mobile LG V10 General] umaro:
I'm returning my t-mobile V10, and just wanted to put some various ramblings and personal opinions here for anyone who's considering this phone. If you already have the phone and you like it, carry on. It's a pretty good phone, all around.

I was coming from a note 3, so I really wanted to keep the 5.7" screen. When it's in immersive mode, it's great, but one thing I didn't account for is that because it has no hardware home/menu/back buttons, the navigation bar takes up some of the screen size. The screen quality seemed fine, and the auto brightness was really quite good. Other than showing pictures to someone, I never found myself needing to take it off auto and increase the brightness.

The second screen seems like a really good idea. Unfortunately, due to a couple of issues, I found myself turning my phone on/unlocking anyway and wishing it had a notification LED instead. The second screen seems to shut itself off after it's been in your pocket/the dark a few minutes, and doesn't turn back on until you push the power button. At least on my unit, there's a lot of light bleeding (not confined to the second screen rectangle) that was disturbing. It's great being able to see graphics on the second screen, which is about twice the size of the notification bar, meaning you can see contact pictures when someone texts you instead of just their name, etc. The brightness on the second screen is far too low, and it doesn't appear to be adjustable (though when the device is on, the brightness is linked to the main screen's brightness, and looks good). Straight on, it's readable but from any kind of angle, the brightness wasn't enough to keep it readable and provide at-a-glance look at the date/time and waiting notifications. I understand part of the idea is lower battery consumption, but again, I found myself turning my phone on and unlocking it rather than trying to make out what was on the second screen.

It seems to be plenty fast, I didn't try any high-end games on it but it appeared to have no problem with me using it while it auto-updated 5-6 apps at a time, which was a very pleasant surprise. The UI is great, but it's not really laid out like i'd prefer, but I didn't get the feeling that the UI was slowing me down. Overall, the UI is a lot better than I thought it would be.

Battery life was mediocre. I probably would have bought the zerolemon extended battery, but it was out of stock at the time. The fast charging was great, but I had a small amount of anxiety about where my next charge would be coming from.

The camera seemed to take great pictures, but i'm not a photographer nor do I pretend to be.

I didn't notice any changes in cell signal between my note 3 and the V10, but I was told the V10 had something significant to pickup the signal better. I didn't notice it in 2G or 4G/LTE, but didn't really encounter 3G. Having said that, it wasn't terrible, just not an improvement.

The speaker was nice and loud for both music and calls.

I didn't even attempt to deal with the bloatware, rooted immedaitely and I tried cm12 but the second screen didn't work (without a notification LED, the second screen working is a big deal for me), and settled on the deodex/debloated rom. Now that i'm returning it, being able to flash it back to stock and relock the bootloader is awesome.

I hope this was helpful to anyone looking at this device.