I might be buying the samsung marvel S5560 before i buy it i want to know is it a good phone? if not could you please example why? also it says it has wi-fi?? does that mean if i have wireless in my house or if i go anywhere and they have wireless i could go on for free??? without browsing through my phone internet and paying so much money!!! Also is $120 a good price for this phone!! Thanks so much for all your help 