It was fun to see where I could go on my budget - but it listed my originating city twice. I get that people do "stay-cations" but for adventurous travel, probably not. ;)
The 50 mile (or km) radius is a good start, but I'd prefer it to be an adjustable radius or be able to toggle in country or out of country.
Of course, in-country only might be difficult if you aren't familiar with a country.