All the talk about this plan only being a disadvantage to "power users"... I did a test last night, and to stream a single episode of Dirty Jobs in standard definition over 4G takes 188mb.
Let's be honest here. You can't just stream one episode of that show.
That aside, it's not a big deal with wifi availability, but there are definitely times when my 4G signal is stronger or faster than the local wifi. Prime example is on the train into Boston. Sure the MBTA has free wifi, but it's provided by AT&T and unless you're in the right car you're not going to catch the signal. On top of that, the data speeds provided are pitiful.
More common than that though, I recently moved to a new office at work and I do not get the company wifi signal here. This means that now all of my data is coming from 4G.
Personally the biggest gripe is that VZW and other carriers and phone manufacturers incentivize smart phones, use all of the features and data availability as selling points, and then go and change the plans to essentially limit the use of the very same features they advertised. In a single day I could stream more than 1GB+ of data just by playing my music from Google Music through my car stereo while on a road trip. Most days I don't see that though. I guess my point boils down to the fact that the device has the capability, and technology and the internet era is pushing towards cloud use and constant connectivity, and now VZW seems to want to go blindly against the current.
BTW since the 28th of May I've used 1.55GB of data. Definitely not being a power user as far as anyone should be concerned.