I actually carry two iPhones for work and business, plus my iPad
I am in NYC and i am a field technician, so I am traveling from customer to customer within manhattan
I started off with a Verizon iPad 3 because their LTE seemed very promising. Well, it wasn't. The opposite, in fact. I've never used such a horrible network before. I thought it was my device, so I put my sim in an android LTE phone, and was having the same issues. These issues also exist in my iPhone 5. My partner has the exact same issue, and he's on a completely different account than I am on.
I almost never get full service. Most of the time I only see 2-3 bars OUTDOORS. This means that indoor coverage is HORRIBLE in most places - and it is. When I am on the road, the network constantly cuts in and out, which makes tethering pretty useless at times. Even while walking, the LTE service consistently cuts in and out. One minute I have 4 bars of service and moments later I lose all LTE coverage for a few seconds. This gets annoying when I'm on the web.
I switched my iPad to AT&T and what a difference. Night and day. And this is extremely surprising, being that I normally stay away from AT&T due to congestion and dropped call issues.
AT&T 3G isn't the best here. It is congested. However, most places I go, I have 4-5 bars of LTE service, and speeds are very consistent. With iOS 6 and mobile share, I'm able to tether with the iPad, and it works flawlessly. I couldn't be any happier. Indoor coverage is also perfect. The network never cuts out in manhattan, although in Brooklyn it is definitely noticeable that the LTE cell sites are very spaced out, and I'm hoping coverage will be improved in the future.
In April I went to Miami with my Verizon iPad, and it was even worse than NYC!! Couldn't drive more than two blocks without getting knocked off LTE. Web browsing and tethering were completely useless unless I was in a fixed spot, and even then, it was sometimes problematic. I just came back from Miami last week with my AT&T iPad, and again, night and day difference
Overall, both in Miami and NYC, AT&T speed tests were 10 Mbps faster than Verizon's in the exact same location. AT&T also has less latency than Verizon, so web browsing is snappier. In many areas, Verizon's network gets much slower, which is normal due to congestion, but AT&T still shows to be faster in that same area
This is very very disappointing on Verizon's end. They are supposed to be the better network, and if they keep up with theyr crappy LTE network, I will not be looking forward to Voice Over LTE. They're so confident of their network that they said they will not be doing LTE to CDMA handoffs during calls in the event that LTE signal drops. Big mistake here. Calls will definitely be dropping eft and right especially indoors.
I am someone that uses 3000+ minutes per month and a total of 10 GB per month across my 3 devices. Therefore, consistency is very important to me