Nextar X4-T 4.3-Inch Portable GPS Navigator with MP3 Player Buy Now

frankly speaking this is my first time to use a Gps since i come to the usa four months ago..
My friend told me to buy one as i may need it to not to get lost in the huge country when i m driving ,
so i bought one from amazon, fortunatily that was Thanksgiving day and i got a discount for 60%
I thought it was great but the nightmare just started.
first i found the battary is useless:i charged it with correctly for the whole night and when i began to use it the night morning, the gps just standed for approximatily 20 minutes, yeah the screen is big, but is that the standard
stand-by time ?for 1\3 hour? i will still get lost in the huge country unless i only use it for jogging 1 mile away from my house.
as for the second the big screen is just stipud like its designer,when i click it once, it has no reaction(everytime), but whe i click it twice it just performance like crazy, sorry i m with a little anger, but i just can't afford it !it made for insane cramps.
don't buy it!and i will never buy staffs from AMAZON..
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