I switched to the XXL plan from a 20GB More Everything plan. Picked up four more much needed GB's with two teenage girls on my plan and saved $30 per month in making the switch. Plus the carryover data will come in handy, as well. Very happy with this deal.
There is no doubt that for some, and perhaps many more than even realize this new roster of plans offers a more economical solution to their cellular needs than plans they may already have, not the least of which are the UDP plans of long past. The issues I see with the UDP plans for instance, are that they;
a) don't allow wireless tethering without an additional monthly expense
b) don't offer unlimited voice minutes
c) many (such as mine) also don't allow unlimited, or for that matter ANY texting as part of the pricing but instead require either a per-text fee or a monthly "service" fee for a limited number of texts
d) are very expensive relative to their unlimited voice and text tiered plan counterparts with respect to voice and texting, although when you factor in data on the tiered plans become more economical at higher data limits
e) don't offer any type of incentive in the way of cost reduction for reduced data consumption, only for reduced phone calls
What they do however is;
a) prevent any data overage fees
b) allow streaming unlimited
c) they do not throttle any data for high consumption
d) as the ever increasing data consumption of apps, social media, video streaming, internet TV and other forms of increasing data hungry processes continue to become mainstream there is never any fear of the possibility that you will need to increase your monthly expense to continue using the device and take advantage of the newer technology in the same manner.
The original tiered pricing plans;
a) do allow wireless tethering or "Personal Hotspot" for no additional charge
b) do allow unlimited voice calling
c) do allow unlimited texting, either SMS or MMS (except where MMS consumes data and subject to the data plan limits)
d)
This new tiered pricing, along with the “carryover data” minutes;
a) does offer an incentive to keep your data consumption to a minimum, while still affording the luxury of going over the regular monthly allotment as long as the previous month was a low-data month
b) also includes the ability to tether wirelessly without any additional monthly or plan fee expenses
c) provides for unlimited voice calling
d) provides for unlimited texting, either SMS or MMS (except where MMS consumes data and subject to the data plan limits)
e) offers the additional "Safety Mode" which prevents consumers from being charged for data overage, although it apparently pushes the remaining month's plan data to an antiquated 2G speed
Trust me, if you are a data-hungry consumer, these plans will be more expensive than the UDP, and yet it appears they are less expensive for those higher data users than the earlier tiered plans.
My assessment of the plans and comparisons is by no means thorough, but simply an observation of what I consider to be key differences with respect to my own concerns. Others may have differing opinions.