You have a much better chance of getting a good Eris than a bad one, going by the majority of user input here and in other forums.

Having said that, it might be a good idea for you and her to both read the "everything" thread as much as you can:

http://androidforums.com/htc-droid-eris/53708-everything-you-need-know-about-your-htc-eris.html

..as well as other threads talking about refurbs; do a search in the Eris area here on "refurbs," perhaps.

To answer your question directly.. yes, I think you'll be happy with a refurbished Eris.

 

I agree, I think it's a good idea. Great phone I loved it since first picking it up. Went back to it from moto droid. I would consider putting 1.5 back on the phone if 2.1 is a deal breaker. easy process. I'm back on 1.5 myself.

 

we ordered a new Eris for my wife last night, she likes mine and she wanted a full touch screen phone, she doesn't like the blackberry storm and the incredible seems to be too much phone for her so the Eris was a good fit for what she wants, mine has been working great after a factory reset on 2.1 also.


so in short, i think your wife will like it.