unlocked phones that work well for t-mobil?

that all features work well ?

Yes. A GSM unlocked mobile phone will definitely work well with a T-mobile SIM card. But make sure that the unlock method was a safe one. Certain unsafe unlocking methods would give problems while working with other SIM cards. Especially T-mobile SIM cards as they use different bands. So it is always better to get a network locked mobile phone for low cost and unlock it yourself safer using unlock code. The safest way to unlock a mobile phone is using unlock code. An unlock code for a mobile phone can be obtained from Unlock-Zone.com at affordable cost with easy unlocking guide. Good luck.