Agreed. In fact, before you spend too much time looking at the A/C you may want to just look at the cabin filter. Last week when it was hot here, it wasn't taking that long to get cold air at the vents, but was taking quite a while to actually cool off the car on those hot days. Honestly the car never seemed to have quite enough flow from the vents since I got it like 4 or 5 years ago, a 2013 model. I didn't realize Chevy's had a cabin filter(!), so I switched that sucker out last week and I get more airflow on speed 5 now than I got before on speed 6. Don't get me wrong, the car has small vents, I probably still got double the airflow on by 2000 Buick Regal that I get on here, but it's much better than it was, the vents seem to blow cool air faster (not surprising since there's not a wall of leaves and dirt in the middle of the ventilation system any more...) and quite a bit more volume.
If you're not sure, look at the filter anyway -- I was shocked at how easy it is. You open the glove box, pull this "clip" through a hole on the right side, (there's a string connected to that to control motion of the glove box. ) You pop out two clips that clip in near the back of the glove box. That's it, the glovebox pops out and the air filter is right there when you pop the glove box out. I think it took me under 10 minutes (about 8 of it was trying to find the tracks the clips slid into to hold the glove box -- there aren't any, the holes in the dash are the right shape to accept the clips directly.)