You might want to ask people you know if they have T-Mobile and what phone they use to find out if the problem is the phone, reception, or both. People I know in NW Indiana overall complain about T-Mobile having poor reception. If you use a booster, don't get one of those stickers that you place inside of the phone as it's a waste of money and do nothing to improve reception. The booster you want is to get an antenna that hooks into a jack on the phone, or if it has the universal screw on retractable antenna, take that off and hook the line of the booster antenna to the phone. I normally see those types at truckstops. You can check wilsonelectronics.com on the type of booster antenna that would work for you.
I have Tmobile's service, and the Motorola V180 phone... and this combination does not work for me at all. The recption in my apartment (Arlington, VA) and work (downtown DC) is bad... and as such totally defeats the purpose of a cell phone.
Can anyone let me know how I can improve my chances of better reception... Use some boosters, or perhaps a different phone? Would really appreciate some help.. I just renewed my contract with Tmobile, and might not be able to move away from them.