Hi nvptx,
I can't get to very much of what Suddenlink has for documentation because they don't service my zipcode. Does Suddenlink have a link on their site to a speed measurement? If so which one is it?
I did see this: Suddenlink Network Management Practices.
To help mitigate potential network congestion, we are in the process of applying bandwidth usage allowances to residential Internet accounts, with incremental bandwidth automatically provided for a nominal, incremental fee.
Only in the relatively few cable systems listed and only through the means described in this document, we may limit the bandwidth available to individuals whose usage materially exceeds the typical customer usage in those cable systems.
I didn't check the TestMy database for average speeds from Suddenlink (if there is any data). You could see what their averages are on TestMy. Look at yours relative to those averages (don't worry about the absolute numbers). The bar charts here when the tests finish tell you how you are doing compared to others on your ISP. The percentages are useful in seeing how you are doing compared to the others.
Since I couldn't get to a lot of their website info (It wouldn't allow me to get to their support site or detailed plan info), I don't know what they are really offering. You are getting about 5x the bandwidth I see on TestMy on Time Warner's RoadRunner, and I think we pay about $45/mo. Unfortunately for you, it seems that your speeds are somewhat lower since their "upgrade". I don't know whether this is due to some of their load balancing in their network management practices or not.
I can tell you this, that the Time Warner RoadRunner I have "guarantees 10 Mbps download and 1 Mbps Upload. My TestMy results average about 20% lower on both up and down from these numbers. The SpeedTest tool that Time Warner has a link to typically reads 3x higher on download, and the upload they show is usually 20% higher.
I don't know what you are paying compared to what I'm paying but my $45/month gets me about 8Mbps down and 0.8 Mbps up. The it's a matter of whether you think your monthly fees are in line with what you are getting.
I don't know what regulations there are for ISPs meeting their advertised speeds. But virtually all of them use similar optimistic questionable speed measuring tools. And very likely none of them meet their advertised speeds when measured more realistically via TestMy. I haven't researched whether there are any class action lawsuits agains any of the major ISPs for false advertising, but the whole thing seems pretty loose to me.