With T-Mobile planning to get rid of corporate discounts, I decided it was time to revisit service options. Searching around, I ran across Consumer Cellular, and it looks like it may be a good fit for my wife and I; in fact, for our specific needs, it almost looks too good to be true. I was just wondering if anyone here has any experience to confirm the info I got from their customer rep. I guess I'm just a little paranoid about believing what any rep tells me 
Consumer Cellular is a contract-free, postpaid AT&T MVNO, and it appears they have access to the entire AT&T postpaid network, including LTE and roaming. If true, that's a huge improvement over what we're getting with T-Mobile; I guess this is the main thing I'd like confirmed because it seems like many of the AT&T MVNOs tend to be limited to AT&T prepaid coverage. Out here in the midwest, there are areas we sometimes go where AT&T doesn't have native coverage - actually T-Mobile doesn't either - it's just a regional GSM carrier, so roaming is important. (It's why I went T-Mobile postpaid instead of their prepaid $30 plan.)
Their max. data plan is only 2GB shared, which is light for many people, but actually should be OK for my wife and I. She tends to use ~0.5 GB per month, and I tend to use 1-1.5 GB, though occasionally go a little higher. I could try to be more careful with data, but interestingly, on the max. data plan, overages are only 1.5c/MB, and the rep claims they only charge for the actual overage amount rounded up to the next MB. So if for example we went 10 MB over the limit, we'd only be charged $0.15, not automatically charged for an extra chunk of data like 300MB or 1GB. If so I can live with that. (Oh, and according to the rep, tethering is OK as well. Granted I hardly ever do that, and there's not a lot of data to work with, but it's a nice option for occasional use.)
So looking at their plans and our combined usage, I think we could get away with their 500 minute plan ($20/month) + 2GB data plan ($30/month) + 2nd line charge ($10/month) for a total of $60/month. That's $30/month less than we'll be paying on T-Mobile without the corporate discount with better coverage to boot. Even allowing for higher use (more minutes and/or some data overages), it looks like at worst we'd be paying close to the same as T-Mobile but with better network coverage. And better Windows Phone device compatibility since it'll be on the AT&T network.
I'm really struggling to see a downside here; does anyone know if the above info is legit, or have any other suggestions for MVNOs I should look at?

Consumer Cellular is a contract-free, postpaid AT&T MVNO, and it appears they have access to the entire AT&T postpaid network, including LTE and roaming. If true, that's a huge improvement over what we're getting with T-Mobile; I guess this is the main thing I'd like confirmed because it seems like many of the AT&T MVNOs tend to be limited to AT&T prepaid coverage. Out here in the midwest, there are areas we sometimes go where AT&T doesn't have native coverage - actually T-Mobile doesn't either - it's just a regional GSM carrier, so roaming is important. (It's why I went T-Mobile postpaid instead of their prepaid $30 plan.)
Their max. data plan is only 2GB shared, which is light for many people, but actually should be OK for my wife and I. She tends to use ~0.5 GB per month, and I tend to use 1-1.5 GB, though occasionally go a little higher. I could try to be more careful with data, but interestingly, on the max. data plan, overages are only 1.5c/MB, and the rep claims they only charge for the actual overage amount rounded up to the next MB. So if for example we went 10 MB over the limit, we'd only be charged $0.15, not automatically charged for an extra chunk of data like 300MB or 1GB. If so I can live with that. (Oh, and according to the rep, tethering is OK as well. Granted I hardly ever do that, and there's not a lot of data to work with, but it's a nice option for occasional use.)
So looking at their plans and our combined usage, I think we could get away with their 500 minute plan ($20/month) + 2GB data plan ($30/month) + 2nd line charge ($10/month) for a total of $60/month. That's $30/month less than we'll be paying on T-Mobile without the corporate discount with better coverage to boot. Even allowing for higher use (more minutes and/or some data overages), it looks like at worst we'd be paying close to the same as T-Mobile but with better network coverage. And better Windows Phone device compatibility since it'll be on the AT&T network.
I'm really struggling to see a downside here; does anyone know if the above info is legit, or have any other suggestions for MVNOs I should look at?