Looking at a map, anyone who uses the Grand Parkway/99 to get to Aliana (unless perhaps you're coming from the west) would be going way out of the way.
Instead, you'd use FM 1464/Westheimer exit from the Westpark.
Or, go south to use US 90A or Hwy 59 like the other poster said.
Like I mentioned earlier in the thread, the Grand Parkway veers in east around Sugar Land and Richmond. Up toward Katy, it veers out west. It does not make a perfect half circle around the western edge of the Houston metro.
Aliana location on Google Maps