I had Bell Atlantic-rebranded Telocity 640/90 ADSL service. It was great, stable, and a good deal for the buck at the time. Service went downhill right before DirecTV bought them off, and well the rest is history.
Back then I'd say many broadband resellers failed due to uncooperative telcos and exorbitant leased line pricing.
I had telocity and it was awesome, had it before the big telocity push a years back, hardware DSL modem was great. when direct tv bought them out and things started going downhill fast, and when they quit providing service I had to switch to bellsouth, and with the same copper I went from 1.6Mbps to 1.4/1.2
I love directtv sat, and still use it, but they don't know how to run broadband, even the sat based stuff.