I vote no to textured walls. Mainly because it's harder to clean/scrub. Sawdust, soot,etc... will tend to adhere/hang to it. Harder to install/attach things on the wall that would be better on a level surface. The uneven surface can scratch finished surfaces, ex. glass,door panel bumped against it,other body work,etc.... A little harder to paint an uneven surface to get every nook and cranny.
The up side is that you could quickly patch holes without finishing it with additional coats of compound.It would be a little more durable surface.
I think you are referring to a different product, or technique than what we left coaster refer to as textured.
Guys around these parts also call it a 'knockdown finish' (cause that's what you do w/ the trowel after spraying on the texture).
I have that stuff everywhere in the house, garage, etc.
It's very simple to spray on, so much so that that's where must folks make the mistake of over complicating it. Like my 1st project. It's easy to spray too much, to trowel too much and so on. W/ this job, less is better in most cases.
A guy could rent the gun and airless sprayer for a day and get it done. Rent it Sat afternoon, so you don't have to return it till Monday, assuming it works out that way.
Get an extra sheet of drywall to practice technique on, cause it's easy to foul up, as mentioned. Good thing is, if ya do foul up a small area, just immediately scrape it right back off the wall.
Personally, I'm stubbornly DIY, so that's where this advice is coming from. YMMV