I love Text Expanding. Makes it so much faster to write. Text Expander was the preferred choice, but continuous nag screens and featureless pricy upgrades ($35!) made me look for an alternative.
The $5 aText does 90% of what Text Expander does at 1/7th the price. And it’s faster.
Downsides? You have to buy it straight from them (not the App Store version, that has issues) and the 10% it doesn’t do can be the thing you need (expanding smart snippets in a fill in line for example).
All in all, I’m down with aText.