General is it worth upgrading from Samsung Admire? Metropcs

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http://androidforums.com – I got the Admire, was my first smart phone, use it all the time, seems slow, have bad connection, no network alot. The admire seems to have problems switching from wifi to using it's internal whatever to connect, I have to restart a lot. Will this phone be a big improvement and will the 4 g plan be worth the $5 more per month or does it sound like a service problem? I could keep using the admire a while longer. I'm thinking about going today so please chime in soon if you have an opinion. (General)