I own a LC9 and I like it. I carry it when it is not too hot outside (then I carry a stainless steel S&W mod. 60 .357). I find the trigger pull on the LC9 much lighter than the S&W m. 60.
If your mother finds the LC9 hard to rack or the recoil is too stiff, consider the LC380.
Pros: price, size, capacity, ease of use, U.S. made
Cons: recoil, trigger pull, magazine safety feature