Born & raised in the Metro ATL area, raised by proficient English-speaking & intermediate-proficient English-speaking father & mother, more or less raised bilingually between English & Somali until around late elementary school when I leaned towards English, spoke English only until around 17-18 where I decided to re-learn it.
Accent is closest to a formal GenAm register in terms of stress-timing, intonation, and vocab, but some features are variable:
Syllable-final /n/, /m/, and /ŋ/ can be deleted for vowels to become nasalized.
Intervocalic /n/ can be realized as /ɰ̃/ in examples such as "final".