I presume you're referring to their DSL service, in which case performance depends upon the distance between your home and their access node.

http://www.broadbandreports.com/forum/r26910859-New-Fusion-a...

I have Fusion on Sonic and I get around max ~750KB/sec (2.97Mbps according to speedtest.net) downloads. Apparently, I'm at the tail end of the distance from my central office. Sigh.

No DSL provider can do that. Speeds depend on your distance from their facilities. To their credit, they tell you your distance when you fill out the service availability form, which you can use to get a rough idea of the quality of service you can expect.

I'd say sonic offers the best DSL service of any provider. I switched from att to sonic and got much better speeds over the same lines, probably thanks to a better backend setup. This privacy policy is another example of that.

With Sonic, I get 26/6 using annex B near a CO with the two-line bonded fusion dsl at one site. ($80/mo; the next step up would be $1k/mo for 30/30)

6/1 at another site, so there we use Comcast Business instead.

Note the "up to". Also that they probably give you ATM throughput, which adds 20% overhead to IP throughput. But the most important factor you're missing is distance; see these graphs: http://www.pcinpact.com/news/71764-vdsl2-sfr-fibre-optique-f...