It's all about business. You do what you can...dropping them. ATT loose money, DSL Extreme looose money and you got the last laugh, right?
Proof! What I've always said. Bad news travels 10 times farther than good news.
I am a DSL Extreme user. From what I've read, it seems that the one constant in their universe is to notify them in writing as well as online for termination.
Way back when I worked for an ATT subcontractor, the breakup of PackBell/ATT was to allow competition.
What DSL extreme does is lease usage of existing services from carriers that currently supply service. So if ATT or whom ever does your hard wired phone service gives you cruddy service, that probably isn't going to change if you change over to DSL Extreme. It appears that they use google's servers to host their site. I could be wrong as everything seems to be an illusion at the OSI physical layer these days.
Its always a bad sign when their tech service has an attitude before you actually talk to them which seems to be another of DSLExtreme's norms and the general tech service knowledge is about as dumb as a mud fence outside of internet explorer. They changed some of their web site security recently. To access their site I had to change mine to conform albeit my system is tighter than most and custom security configurations don't like change.
Simple standards questions such as "What certificate authority does https dslextreme.com use" can't be answered by their tech service.
Their bandwidth is always going to be limited to that supplied by who they contract with. ATT would like to X out competition as such and therefore is attempting to do away with single DSL service in favor of Uverse which adds to the problem. So the carriers' reluctance to deliver service, DSLX's inability to do much of anything on the hardware side as well as their skimping on hiring real techs, diagnostics equipment and software will probably doom their company.
If you already have DSL service with your the current utility carrier that actually owns the wires, laws state they have to give a competitor an equal chance. Its more of a billing thing than anything else and as far as I know ALL of DSL Extreme's hardware service is a subcontractor thing.
For me ATT carries my DSL. Everything was already in place and running. The change over to DSL Extreme was seamless. The only thing that really changed was my internet PPPoE username and password. I am still routed through the same pacbell.net boarder router to the internet and still hooked into the AS7018 segment of the internet. Route traces still return the same routes to sites as before.
One difference is that initially ATT skimmed about 170kbs off my promised introductory service and didn't give me full bandwidth until they raised my rates an additional $25 a month. My initial contract with DSL Extreme didn't much alter anything after the switch except the bill dropped my $28 a month for my first year.
From what I have read so far on the net, if you are having configuration or hardware problems now, switching over to another using the same hardware probably isn't going to solve anything. If someone buys out your current hardware carrier and decides to do a redesign you probably will encounter the same problems you normally get from telling party #3 to tell party #2 to tell party #1 the problem. And above all NOBODY will want to admit they got hacked.
I guess we will see what happens next.