It sounds a good idea of not having to pay monthly fee, no tax, no commitment. However, you end of paying more than that, plus tons of troubles.After I purchased the phone, I signed up the service, set up the account and voice mail. It costs me almost 20 air time units to make it work. (1 unit = 50 to 60 cents)I called home 3 miles away from my home, and still in my home area, (not in roaming) a recorded voice told me that &quot;you have to dial the area code first&quot;, this stupid message costs me 2 units. And I have to use the roaming dial to reach my home which costs me 2 units per minute.Carrying Tracfone to roaming area without even touching the keypad, which costs me another 2 units.Since, there is no contract, once you run out of airtime or the airtime expired, you will lose your phone number. For this reason, the phone number are recycled fast, so I received a lot of calls from people looking for previous phone numbr owners. Which ends up I have to pay a lot of units for wrong numbers.I have no idea why the air time units displayed on the phone decreased so fast, neither do I know what causes it to decrease.The phone (or the service) is very unreliable. It will NOT work in malls, groceries, and hotels. People can NOT reach you, and you can NOT call out. In the open area, it works, so far.The customer services is terrible. You may spend 30 minutes on you home phone in order to get a person to talk you. (Warning: DO NOT use Tracfone to call their Customer Services, You may end up paying 60 air time units in order to get a real person to talk). And that person will NEVER solve your problem. DO NOT even try to complain that air time units disappear without a reason, they will insist that you have made phone calls a lot. There is no record of you phone call activities, you can only simply take their words.Recharging air time is another headache. You spend half-hour to go through snail-responsed webpage, at the same time working on your cell phone to get your series number. The series number is NOT printed on the phone, you have to read the user's menu first to know how to get the series number out of your cell phone. Then give your credit card number. Then it the webpage responds &quot;There is a error occur, please call our customer service.&quot; Then, start all over again to struggle to reach a person to talk on customer service. Eventually, type a 30 digits code into you phone.I wish people have posted these messages before I purchased the phone.