[LG V30 Questions & Answers] br0adband:
One word:

ABSO-BLOODLY-LUTELY ;)

I just went from a V20 (T-Mobile model, H918) to an AT&T H931 V30, then converted it to the US Cellular US998, stock ROM 20H, rooted with Magisk, no issues so far. I get 9+ hours of SOT per charge and I plug it in once every 48-72 hours for no more than about 45 minutes (I cut the charging at 85% using AccuBattery to alert me when it hits the 85% threshold). If I did fully charge it to 100% I'd probably end up with 11+ hours of SOT - I can't say everyone else can or will or even does get such SOT but I do, and the V30 I have is a 1st production run model purchased by an AT&T employee and she sold it to me recently for a pittance after she upgraded - I got two of them for $100 for both and they both work fantastic (one for me, one for my Wife), both converted to the US998, not one issue so far.

As for my V20, I had two batteries on it so I swapped them once a week. My regular stock ROM rooted with Magisk on that one gave me about 7-8 hours of SOT on a charge, once every 24-48 hours or so. Never cared about the speaker output since I use headphones for listening to whatever but the speaker on my V20 when I had it was louder than the speaker is on my V30, that much I can say for sure.

My V20 never got hot to speak of, and while I did test out some custom ROMs none of them interested me longer than a day or two so stock was where it worked best which is often the case.

The H932 is considered to be the best of the V30 models because it is the only one that has support for Band 71 aka the 600 MHz LTE band. No other V30 has that, and there's no way to add such support in the other models/variants because the radio hardware simply doesn't support it - only the T-Mobile H932 has that Band 71 support natively.

If you're a T-Mobile customer (as I am) it only makes sense to get the H932, but having said that realize if you wish to do custom ROMs like Lineage 16 or whatever that model, the H932, has some very specific requirements and you'll find most every custom ROM out there has an H930 "generic" version and a version for the H932 so be careful if you're experimenting. If you apply any non-H932 specific ROM to your H932, you'll more than likely brick it, but most of the custom ROM threads are rather explicitly clear about what to do.

You just have to READ everything, don't make assumptions 'cause it's an H932 and it works like the rest of the V30 models/variants, and absolutely READ absolutely everything necessary before you even start a flashing process or else you're gonna regret it really fast.

If I could have gotten two H932's for $100 for both sure, I would have been all over it, and I do live in an area that has some Band 71 coverage but I'm good to go so far. We may see an official Android 9 Pie ROM here soon for the US998, or maybe even the H931 AT&T model might get it soon, doesn't matter in the long run since it's still just Android to me. Oreo works just fine, and with 9+ hours of SOT on a charge, I'm very hesitant to screw around with that for fear of doing something that causes it to not last anywhere near that long.

But the V30 is a fantastic piece of hardware, seriously, even today.