I also live in a difficult area for reception and it works well in my area.
Reception should be good to excellent.
Walmart has a great return policy... just keep all packaging. It's 15 for "prepaid phones and cards," and 90-days for other electronics, with some exceptions. Not sure which this is classed as, but here's their return policy page:
So, you'll have at least 15 days to try it with the phone number they'll assign to start, then return to store for refund within 15 days?