The really bad thing about the Houston city districts is that they draw the city limits to keep control. If they need to annex an affluent area for taxes, they always pair that with annexing enough minority neighborhoods to offset the new votes and keep control.
The gerrymandering of the city limit makes the congressional offices look like childs play.
And they added a bunch more puppet seats to city council diluting the power of those who were elected to serve on council as opposition.