I haven't used Aider yet, but I see it show up on HN frequently recently (the last couple of days specifically).
I am hesitant because I am paying for Cursor now and I get a lot of model usage included within that monthly cost. I'm cheap, perhaps to a fault even when I could afford it, and I hate the idea of spending twice when spending once is usually enough. So while Aider is potentially cheaper than Claude Code, it is still more than what I am already paying.
I would appreciate any comments on people who have made the switch from Cursor to Aider. Are you paying more/less? If you are paying more, do you feel the added value is worth the additional cost? If you are paying less, do you feel you are getting less, the same or even more?
You can protect your files in a non-AI way: by simply not giving write access to Aider.
Also, apparently Aider is a bit more economic with tokens than other tools.